A chain plate tensioning device capable of automatically adjusting the chain plate tensioning device

Abstract

The present application discloses an automatically adjustable chain plate tensioning device, comprising a chain plate, two tensioning members, a tensioning roller, and a frame; the chain plate and the two tensioning members are all connected to the frame, the chain plate can run on the frame, and the two tensioning members are respectively located on both sides of the chain plate; the two ends of the tensioning roller are respectively connected to the two tensioning members, and the tensioning roller is located between the two ends and presses against a surface of the chain plate; the tensioning member comprises a mounting plate, an adjustment seat, and a tension spring, the adjustment seat is fixedly connected to the lower side of the mounting plate, one end of the tension spring is connected to the adjustment seat, and the adjustment seat can adjust the tension of the tension spring; the two ends of the tensioning roller are respectively located on the mounting plates on both sides and connected to the tension spring, and the tensioning roller can slide between the two mounting plates. In the present application, by adjusting the tension of the tension spring, the pressure applied by the tensioning roller to the chain plate is adjusted, ensuring that the chain plate is always in a tensioned state even when the chain plate is greatly extended or contracted, thereby avoiding the chain plate from shaking and ensuring the chain plate runs smoothly.

Description

Technical Field

[0001] The present application relates to the field of logistics technology, and in particular to an automatically adjustable chain tensioning device. Background Art

[0002] In automated logistics systems, chain conveyors are the final piece of the puzzle. Logistics centers ship goods nationwide via box trucks. To improve outbound delivery efficiency and reduce labor intensity, chain conveyors are typically installed at the outbound delivery point. The chains of telescopic conveyors are made of plastic and are very long (50 meters). These chains are susceptible to thermal expansion and contraction due to temperature differences, with the length of the chains in the morning and at noon varying by as much as 12 centimeters. In hot weather, these chains soften and are prone to plastic deformation. Overly long chains, due to vibration during production, can reduce the tolerance of the drive sprockets, causing them to jump teeth on the drive pulley and lose power. Existing tensioning devices rely on their own gravity for tensioning, making the tensioning force unadjustable and unsuitable for diverse environments. Summary of the Invention

[0003] One purpose of the present application is to provide an automatically adjustable chain plate tensioning device to solve the above-mentioned problem, so that the chain plate is always in a tensioned state during operation, avoiding shaking of the chain plate during operation, ensuring stable operation of the chain plate, and being applicable to different environments.

[0004] The automatically adjustable chain plate tensioning device provided by the present application comprises a chain plate, two tensioning members, a tensioning roller and a frame; the chain plate and the two tensioning members are all connected to the frame, the chain plate can run on the frame, and the two tensioning members are respectively located on both sides of the chain plate; the two ends of the tensioning roller are respectively connected to the two tensioning members, and the pressing section of the tensioning roller located between its two ends presses against one surface of the chain plate; the tensioning member comprises a mounting plate, an adjusting seat and a tension spring, the mounting plate is fixedly connected to the frame, and the mounting plate is fixedly connected to the frame, and the mounting plate is fixedly connected to the frame. A slide groove is provided on the mounting plate; the adjusting seat is fixedly connected to the lower side of the mounting plate, one end of the tension spring is connected to the adjusting seat, and the adjusting seat can adjust the tension of the tension spring; one end of the tensioning roller is located in the slide groove of one of the tensioning members, and is connected to the other end of the tension spring of one of the tensioning members; the other end of the tensioning roller is located in the slide groove of another of the tensioning members, and is connected to the other end of the tension spring of another of the tensioning members, and the tensioning roller can slide in the two slide grooves.

[0005] In one embodiment, the adjustment seat includes a fixing seat, an adjusting bolt and a first locking nut; one end of the fixing seat is fixedly connected to the lower side of the mounting plate, and a through hole is provided on the fixing seat; the adjusting bolt passes through the through hole and is connected to one end of the tension spring; the first locking nut is threadedly connected to the adjusting bolt, and the first locking nut abuts against the side of the fixing seat away from the tension spring.

[0006] In one embodiment, a connecting hole is formed on a side of the adjusting bolt close to the tension spring, and the tension spring hook is disposed in the connecting hole.

[0007] In one embodiment, the fixing seat includes a first plate and a second plate that are vertically fixedly connected, the first plate is fixedly connected to the lower side of the mounting plate, the through hole is opened on the second plate, and the first locking nut abuts against the side of the second plate away from the tension spring.

[0008] In one embodiment, the adjustment seat further includes a second locking nut, the second locking nut is threadedly connected to the adjustment bolt, and the second locking nut abuts against a side of the second plate close to the tension spring.

[0009] In one embodiment, the slide groove includes an adjustment groove and a locking groove that are interconnected, the adjustment groove is opened in the vertical direction, and the angle between the adjustment groove and the locking groove is greater than 0 degrees and less than 90 degrees; the two ends of the tensioning roller are respectively located in the respective adjustment grooves of the two tensioning members.

[0010] In one embodiment, the tensioning roller also includes two counterweight handles and two sliding sections; the two sliding sections are respectively fixedly connected to the two ends of the pressing section, and the two sliding sections are respectively located in the sliding grooves of the two tensioning members; the two counterweight handles are respectively fixedly connected to the side of the two sliding sections away from the pressing section; one end of the tension spring is connected to the counterweight handle.

[0011] In one embodiment, the diameter of the sliding section is smaller than the diameter of the pressing section, and the diameter of the pressing section is larger than the width of the sliding groove.

[0012] In one embodiment, the diameter of the counterweight handle close to the sliding section is greater than the width of the sliding groove, and the diameter of the counterweight handle close to the sliding section is greater than the diameter of the counterweight handle away from the sliding section.

[0013] In one embodiment, a slot is further provided at one end of the counterweight handle away from the sliding section, and one end of the tension spring is clamped in the slot.

[0014] The automatically adjustable chain plate tensioning device provided by the present application comprises a chain plate, two tensioning members, a tensioning roller and a frame; the chain plate and the two tensioning members are all connected to the frame, the chain plate can run on the frame, and the two tensioning members are respectively located on both sides of the chain plate; the two ends of the tensioning roller are respectively connected to the two tensioning members, and the pressing section of the tensioning roller located between its two ends presses against one surface of the chain plate; the tensioning member comprises a mounting plate, an adjusting seat and a tension spring, the mounting plate is fixedly connected to the frame, and the mounting plate is fixedly connected to the frame, and the mounting plate is fixedly connected to the frame. A slot is provided on the mounting plate; the adjustment seat is fixedly connected to the lower side of the mounting plate; one end of the tension spring is connected to the adjustment seat, and the adjustment seat can adjust the tension of the tension spring; one end of the tension roller is located in the slot of one of the tensioning members and is connected to the other end of the tension spring of one of the tensioning members; the other end of the tension roller is located in the slot of the other tensioning member and is connected to the other end of the tension spring of the other tensioning member, and the tension roller can slide in both slots. In the present application, by pressing the tension roller against one surface of the chain plate, the chain plate remains in a straight state after being deformed by heat due to the pressure applied to the chain plate by the tension roller. At the same time, in the present application, an adjustment seat is added to adjust the tension of the tension spring to adjust the pressure applied to the chain plate by the tension roller, further ensuring that the chain plate is always in a tensioned state even when the chain plate is greatly extended or contracted, thereby preventing the chain plate from shaking and ensuring smooth operation of the chain plate.

[0015] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0017] Figure 1 Schematic diagram of the overall structure of the automatically adjustable chain plate tensioning device provided in an embodiment of the present application.

[0018] The following are marked in the figure:

[0019] 100-chain plate; 200-tensioning member; 210-mounting plate; 211-slide groove; 212-adjusting groove; 213-locking groove; 214-connecting section; 215-locking section; 216-groove; 220-adjusting seat; 221-fixed seat; 222-first plate; 223-second plate; 224-adjusting bolt; 225-connecting hole; 226-first locking nut; 227-second locking nut; 230-tension spring; 300-tensioning roller; 310-counterweight handle; 400-frame. DETAILED DESCRIPTION

[0020] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0021] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0022] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0023] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0024] like Figure 1 As shown, the adjustable chain plate tensioning device provided in the embodiment of the present application includes a chain plate 100, two tensioning members 200, a tensioning roller 300 and a frame 400; the chain plate 100 and the two tensioning members 200 are all connected to the frame 400, and the chain plate 100 can run on the frame 400, and the two tensioning members 200 are respectively located on both sides of the chain plate 100; the two ends of the tensioning roller 300 are respectively connected to the two tensioning members 200, and the pressing section of the tensioning roller 300 located between its two ends presses against a surface of the chain plate 100; the tensioning member 200 includes a mounting plate 210, an adjustment seat 220 and a tension spring 230, and the mounting plate 210 is fixedly connected to the frame 400, and A slide groove 211 is provided on the mounting plate 210; the adjusting seat 220 is fixedly connected to the lower side of the mounting plate 210, and one end of the tension spring 230 is connected to the adjusting seat 220, and the adjusting seat 220 can adjust the tension of the tension spring 230; one end of the tensioning roller 300 is located in the slide groove 211 of one of the tensioning members 200, and is connected to the other end of the tension spring 230 of one of the tensioning members 200; the other end of the tensioning roller 300 is located in the slide groove 211 of another of the tensioning members 200, and is connected to the other end of the tension spring 230 of another of the tensioning members 200, and the tensioning roller 300 can slide in the two slide grooves 211.

[0025] In the embodiment of the present application, the pressing section of the tensioning roller 300 presses against a surface of the chain plate 100, thereby applying pressure to the chain plate 100. The two ends of the tensioning roller 300 are respectively connected to the tension spring 230. Those skilled in the art will know that the tension spring 230 is always in a pulled-up state. In this way, the tension spring 230 will also apply tension to the tensioning roller 300, that is, the magnitude of the tension of the tension spring 230 can affect the pressure of the tensioning roller 300 on the surface of the chain plate 100.

[0026] In this embodiment, an adjustment seat 220 is also provided to adjust the pressure of the tension spring 230, that is, to adjust the pressure applied by the pressing section of the tensioning roller 300 to the chain plate 100. Therefore, when the chain plate 100 deforms due to thermal expansion and contraction, the pressure of the tension spring 230 is adjusted by the adjustment seat 220, thereby changing the pressure of the pressing section of the tensioning roller 300 on the chain plate 100. This keeps the chain plate 100 in a tensioned state, thereby ensuring smooth operation of the chain plate 100.

[0027] For example, see Figure 1 In the embodiment, when the chain plate 100 is lengthened due to heat, the tension of the tension spring 230 can be increased by adjusting the seat 220, thereby increasing the pressure exerted by the pressing section of the tension roller 300 on the chain plate 100, so as to ensure that the chain plate 100 can be tightened even when it expands due to heat. Conversely, when the chain plate 100 is retracted due to cooling, the tension of the tension spring 230 can be reduced by adjusting the seat 220, thereby reducing the pressure exerted by the pressing section of the tension roller 300 on the chain plate 100. In this way, excessive pressure exerted by the pressing section on the chain plate 100 can be avoided, which may increase the friction of the chain plate 100 during operation or even cause cracking, thereby reducing the service life of the chain plate 100. Therefore, in the present application, by adjusting the pressure of the tension spring 230 on the tension roller 300 through the seat 220, the pressure of the tension roller 300 on the chain plate 100 can be adjusted, which not only ensures that the tension of the chain plate 100 is always in an appropriate state, but also extends the service life of the chain plate 100.

[0028] In one embodiment, the adjustment seat 220 includes a fixing seat 221, an adjusting bolt 224, and a first locking nut 226. One end of the fixing seat 221 is fixedly connected to the lower side of the mounting plate 210, and a through hole is formed in the fixing seat 221. The adjusting bolt 224 passes through the through hole and is connected to one end of the tension spring 230. The first locking nut 226 is threadedly connected to the adjusting bolt 224 and abuts against a side of the fixing seat 221 away from the tension spring 230. It will be understood by those skilled in the art that when the tension spring 230 is perpendicular to the tension roller 300, that is, when the tension force exerted by the tension spring 230 on the tension roller 300 has no component along the axial direction of the tension roller 300, the utilization rate of the tension force exerted by the tension spring 230 on the tension roller 300 is the highest. Therefore, in order to improve the utilization rate of the tension generated by the tension spring 230, it is necessary to make the tension spring 230 and the tension roller 300 perpendicular. In this embodiment, this is achieved through the fixed base 221, which has a simple structure and low cost. Specifically, because the tension spring 230 is connected to one end of the adjusting bolt 224, the tension spring 230 generates a tensile force along the axis of the adjusting bolt 224. The adjusting bolt 224 passes through the through hole in the adjusting base 220, so that the axis of the adjusting bolt 224 is parallel to the axis of the through hole. Therefore, the position of the through hole directly affects the direction of the tension generated by the tension spring 230. In this embodiment of the present application, the position of the through hole can be flexibly set through the fixed base 221, so that the adjusting bolt 224 passing through the through hole is perpendicular to the tension roller 300, thereby ensuring that the tension generated by the tension spring 230 is utilized to the greatest extent.

[0029] Because the tension spring 230 is always in a stretched state, the tension of the tension spring 230 can be adjusted by using the first locking nut 226 in conjunction with the adjusting bolt 224. Specifically, to increase the tension of the tension spring 230, simply tighten the first locking nut 226, causing the adjusting bolt 224 to move away from the tensioning roller 300. This increases the distance between the adjusting bolt 224 and the tensioning roller 300, thereby increasing the deformation of the tension spring 230 connected between the adjusting bolt 224 and the tensioning roller 300. This increases the tension of the tension spring 230, thereby increasing the pressure exerted by the pressing section on the chain plate 100. Conversely, this decreases the tension of the tension spring 230. This allows for adjustment of the tension of the chain plate 100, with a simple structure and ease of use.

[0030] In one embodiment, a connection hole 225 is formed on a side of the adjusting bolt 224 close to the tension spring 230, and the tension spring 230 is hooked in the connection hole 225. The hooking method can facilitate the replacement and maintenance of the tension spring 230.

[0031] In one embodiment, the fixing base 221 includes a first plate 222 and a second plate 223 that are vertically fixedly connected. The first plate 222 is fixedly connected to the lower side of the mounting plate 210. The through hole is defined in the second plate 223. The first locking nut 226 abuts against the side of the second plate 223 away from the tension spring 230. In this embodiment, the provision of the first plate 222 increases the contact area between the fixing base 221 and the mounting plate 210, thereby enabling the fixing base 221 and the mounting plate 210 to be fixed in a variety of ways, such as welding, bolting, etc.

[0032] In one embodiment, the adjustment base 220 further includes a second locking nut 227, which is threadably coupled to the adjustment bolt 224 and abuts against a side of the second plate 223 proximate to the tension spring 230. The second locking nut 227 limits axial movement of the adjustment bolt 224, thereby ensuring that the tension spring 230 remains stable after adjustment, thereby ensuring operational stability of the chain plate 100.

[0033] In one embodiment, the slide groove 211 includes an adjustment groove 212 and a locking groove 213 that are interconnected. The adjustment groove 212 is vertically extending, and the angle between the adjustment groove 212 and the locking groove 213 is greater than 0 degrees and less than 90 degrees. The ends of the tensioning roller 300 are respectively located in the adjustment grooves 212 of the two tensioning members 200. During long-term use, the chain plate 100 will inevitably need to be repaired or replaced. When repairing or replacing the chain plate 100, the chain plate 100 needs to be in a relaxed state, and the tensioning roller 300 needs to be away from the surface of the chain plate 100. Therefore, in this embodiment, a locking groove 213 is further provided. When the chain plate 100 needs to be repaired, since the locking groove 213 is connected to the adjustment groove 212, the two ends of the tensioning roller 300 can be directly slid from their respective adjustment grooves 212 into the locking groove 213, thereby separating the tensioning roller 300 from the chain plate 100 and facilitating maintenance of the chain plate 100. In this embodiment, the locking groove 213 avoids the need to remove the tensioning roller 300 every time maintenance is required, thereby reducing the workload of workers.

[0034] In one embodiment, the locking groove 213 is perpendicular to the adjustment groove 212, and the connection between the locking groove 213 and the adjustment groove 212 is a circular arc surface, which facilitates the tensioning roller 300 to slide from the adjustment groove 212 into the locking groove 213. Furthermore, the locking groove 213 includes a connecting section 214 and a locking section 215. The connecting section 214 is connected to the adjustment groove 212, and the locking section 215 is provided with a groove 216, which is concave downward. When the ends of the tensioning roller 300 slide from the adjustment groove 212 into the locking groove 213, the ends of the tensioning roller 300 first slide into the connecting section 214 via the circular arc surface and finally enter the locking section 215. Because the locking section 215 is provided with a groove 216, the tensioning roller 300 can be prevented from sliding out of the locking section 215 during maintenance, causing an accident. In this embodiment, after the tension spring 230 slides into the locking section 215 at both ends of the tensioning roller 300, it still applies tension to both ends of the tensioning roller 300. In this way, it can further ensure that the tensioning roller 300 is locked in the locking section 215, ensuring the safety of workers' operation.

[0035] In one embodiment, the tensioning roller 300 further includes two counterweight handles 310 and two sliding segments; the two sliding segments are respectively fixedly connected to the two ends of the pressing segment, and the two sliding segments are respectively located in the respective slide grooves 211 of the two tensioning members 200; the two counterweight handles 310 are respectively fixedly connected to the side of the two sliding segments away from the pressing segment; and one end of the tension spring 230 is connected to the counterweight handle 310. In this way, on the one hand, the position where the tension spring 230 applies tension to the tensioning roller 300 can be limited; on the other hand, the material of the sliding segment can be relatively hard, thereby increasing the service life of the tensioning roller 300. It will be understood by those skilled in the art that the counterweight handle 310 and the sliding segment can be fixedly connected by threads; and the sliding segment and the pressing segment can also be connected by threads.

[0036] In one embodiment, the diameter of the sliding section is smaller than the diameter of the pressing section, and the diameter of the pressing section is larger than the width of the sliding groove 211. In this way, the tensioning roller 300 can be prevented from moving in the axial direction.

[0037] In one embodiment, the diameter of the counterweight handle 310 near the sliding section is larger than the width of the opening of the chute 211. The diameter of the counterweight handle 310 near the sliding section is larger than the diameter of the counterweight handle 310 away from the sliding section. This configuration of the counterweight handle 310 not only facilitates the worker's grip when moving the tension roller 300 but also reduces the tension required by the tension spring 230.

[0038] In one embodiment, the counterweight handle 310 is further provided with a slot at one end away from the sliding section, into which one end of the tension spring 230 is secured. This allows precise control of the direction of the tension applied by the tension spring 230 to the tension roller 300, thereby improving the efficiency of the trial use of the tension spring 230.

[0039] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. An automatically adjustable chain plate tensioning device, characterized in that: It includes a chain plate, two tensioning members, a tensioning roller and a frame; The chain plate and the two tensioning members are both connected to the frame, the chain plate can run on the frame, and the two tensioning members are respectively located on both sides of the chain plate; the two ends of the tensioning roller are respectively connected to the two tensioning members, and the pressing section of the tensioning roller located between the two ends presses against one surface of the chain plate; The tensioning member includes a mounting plate, an adjustment seat and a tension spring. The mounting plate is fixedly connected to the frame and a slide groove is provided on the mounting plate. The adjustment seat is fixedly connected to the lower side of the mounting plate. One end of the tension spring is connected to the adjustment seat. The adjustment seat can adjust the tension of the tension spring. One end of the tensioning roller is located in the sliding groove of one of the tensioning members and is connected to the other end of the tension spring of one of the tensioning members; the other end of the tensioning roller is located in the sliding groove of the other tensioning member and is connected to the other end of the tension spring of the other tensioning member, and the tensioning roller can slide in the two sliding grooves; The slide groove includes an adjusting groove and a locking groove that are interconnected, the adjusting groove is opened in the vertical direction, and the two ends of the tensioning roller are respectively located in the respective adjusting grooves of the two tensioning members; The angle between the adjustment groove and the locking groove is greater than 0 degrees and less than 90 degrees; or The locking groove is perpendicular to the adjusting groove, and the connection between the locking groove and the adjusting groove is an arc surface. The locking groove includes a connecting section and a locking section that are connected. The connecting section is connected to the adjusting groove. The locking section is provided with a groove, and the groove is concave downward. The tensioning roller also includes two counterweight handles and two sliding sections; The two sliding sections are respectively fixedly connected to the two ends of the pressing section, and the two sliding sections are respectively located in the respective sliding grooves of the two tensioning members; the two counterweight handles are respectively fixedly connected to the sides of the two sliding sections away from the pressing section; one end of the tension spring is connected to the counterweight handle; The diameter of the sliding section is smaller than the diameter of the pressing section, and the diameter of the pressing section is larger than the width of the chute; The diameter of the counterweight handle at one end close to the sliding section is greater than the width of the sliding groove, and the diameter of the counterweight handle at one end close to the sliding section is greater than the diameter of the counterweight handle at one end away from the sliding section.

2. The automatically adjustable chain plate tensioning device according to claim 1, characterized in that: The adjustment seat includes a fixing seat, an adjustment bolt and a first locking nut; One end of the fixing seat is fixedly connected to the lower side of the mounting plate, and a through hole is provided on the fixing seat; the adjusting bolt passes through the through hole and is connected to one end of the tension spring; the first locking nut is threadedly connected to the adjusting bolt, and the first locking nut abuts against the side of the fixing seat away from the tension spring.

3. The automatically adjustable chain plate tensioning device according to claim 2, characterized in that: A connecting hole is provided on one side of the adjusting bolt close to the tension spring, and the tension spring hook is arranged in the connecting hole.

4. The automatically adjustable chain plate tensioning device according to claim 2, characterized in that: The fixing seat includes a first plate and a second plate that are vertically fixedly connected, the first plate is fixedly connected to the lower side of the mounting plate, the through hole is opened on the second plate, and the first locking nut abuts against the side of the second plate away from the tension spring.

5. The automatically adjustable chain plate tensioning device according to claim 4, characterized in that: The adjustment seat further includes a second locking nut, which is threadedly connected to the adjustment bolt, and the second locking nut abuts against a side of the second plate close to the tension spring.

6. The automatically adjustable chain plate tensioning device according to claim 1, characterized in that: A clamping slot is further provided on one end of the counterweight handle away from the sliding section, and one end of the tension spring is clamped in the clamping slot.

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