Chain tensioning adjusting mechanism

Abstract

The utility model provides a chain tensioning adjusting mechanism, and relates to the field of chains. The chain tensioning adjusting mechanism comprises a mounting plate, an adjusting mechanism for tensioning a chain is arranged in the middle of the mounting plate, the adjusting mechanism comprises a tensioning chain wheel and an adjusting spring, the bottom end of the adjusting spring is fixedly connected with a sliding block, and a maintenance mechanism for cleaning the chain is arranged in the middle of the mounting plate. And the maintenance mechanism comprises a cleaning brush, an oil separation shell, an oil storage barrel and an air cylinder. According to the chain tensioning adjusting mechanism, pulling force is provided for the sliding block through the adjusting spring, the chain is tensioned through the tensioning chain wheel, the transmission stability of the tensioning chain wheel is improved, the chain is cleaned through the cleaning brush, chain transmission is prevented from being hindered by mud on the surface of the chain, air is conveyed into the oil storage barrel through the air cylinder, the pressure of the air in the oil storage barrel is increased, and the chain tensioning effect is improved. The oil storage barrel conveys lubricating oil into the oil separation shell through the oil conveying pipe, the chain is lubricated through the oil separation shell, and the transmission stability of the chain is improved.

Description

Technical Field

[0001] The utility model relates to a chain tensioning mechanism, specifically a chain tensioning and adjusting mechanism, belonging to the technical field of chains. Background Technique

[0002] Chains are generally metal link rings or rings, mostly used for mechanical transmission and traction. Most chains are composed of components such as chain plates, chain pins, and bushings. The chain-shaped objects used for mechanical transmission are divided into four types: drive chains, conveyor chains, haulage chains, and special chains according to different uses and functions. The tightness of the chain should be appropriate. If it is too tight, the power consumption will increase and the bearings are easily worn; if it is too loose, the chain is prone to jumping and derailing.

[0003] The utility model CN214788861U provides a chain tensioner, which includes a back plate, a horizontal tensioning mechanism, and a vertical tensioning mechanism; one end of the back plate is provided with a shaft hole, and a first double-chain wheel group is fixedly installed through the shaft hole; a horizontal groove is arranged at the other end of the back plate, and a second double-chain wheel group capable of horizontal adjustment is assembled through the horizontal groove; the inner chain wheels of the first double-chain wheel group and the inner chain wheels of the second double-chain wheel group are used for sleeving and installing a horizontal conveyor chain. The utility model can simultaneously realize the tensioning of a total of three conveyor chains, namely a horizontal conveyor chain and a vertical conveyor chain.

[0004] When industrial equipment is running, in order to improve the transmission performance of the chain, a tensioning device will be used. Although the tensioner in the above patent can tension multiple chains, it is difficult to automatically maintain and service the chains. The chains are prone to rust or dirt entering after long-term use, resulting in chain transmission obstacles; for this reason, we provide a chain tensioning and adjusting mechanism to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a chain tensioning and adjusting mechanism to solve the problem that the tensioning mechanism in the comparative document is difficult to automatically maintain the chain.

[0006] The utility model is realized through the following technical solutions: a chain tensioning and adjusting mechanism.

[0007] It includes a mounting plate. A tensioning mechanism for tensioning the chain is arranged in the middle of the mounting plate. The tensioning mechanism includes a tensioning sprocket and a tensioning spring. The bottom end of the tensioning spring is fixedly connected with a sliding block, and the tensioning sprocket is rotatably connected with the sliding block. A maintenance mechanism for cleaning the chain is arranged in the middle of the mounting plate. The maintenance mechanism includes a cleaning brush, an oil distribution shell, an oil storage barrel, and an air cylinder. An oil delivery pipe is fixedly communicated inside the oil storage barrel, and the top end of the oil delivery pipe is fixedly communicated with the oil distribution shell.

[0008] Preferably, two fixed sprockets are rotatably connected to the surface of the mounting plate. A sliding groove is formed on the surface of the mounting plate, and a sliding block slides inside the sliding groove. Through the sliding groove, the sliding block is fixed and positioned, improving the stability of the up-and-down sliding of the sliding block.

[0009] Preferably, a telescopic sliding rod is arranged inside the adjusting spring, and both ends of the telescopic sliding rod are fixedly connected to the sliding block and the mounting plate respectively. Through the telescopic sliding rod, the adjusting spring is fixed, preventing the adjusting spring from swinging and deforming randomly, and improving the stability of the compression and extension of the adjusting spring.

[0010] Preferably, both the oil storage barrel and the air cylinder are fixed on the surface of the mounting plate. A piston plate is slidably connected inside the air cylinder. The middle of the piston plate is fixedly connected with a piston rod, and the top end of the piston rod penetrates through the air cylinder and is fixedly connected to the sliding block. By driving the piston rod to move up and down through the sliding block, the piston plate is controlled to slide up and down inside the air cylinder, squeezing out the air inside the air cylinder.

[0011] Preferably, a one-way valve is fixedly communicated with the surface of the piston plate. The bottom end of the air cylinder is fixedly communicated with an air delivery pipe, and the top end of the air delivery pipe is fixedly communicated with the oil storage barrel. Through the one-way valve, external air enters the inside of the air cylinder, and the air inside the air cylinder is prevented from flowing out, improving the stability of the air delivery of the air cylinder.

[0012] Preferably, an oil brushing pad is clamped to the oil distribution shell, and the oil brushing pad is communicated with the holes on the inner wall of the oil distribution shell. The oil distribution shell is fixedly communicated with the mounting plate. A counterweight ball is fixedly communicated with the bottom end of the oil delivery pipe. The lubricating oil flowing out through the oil distribution shell is evenly dispersed on the surface of the oil brushing pad, and the chain is washed through the oil brushing pad, preventing the chain from rusting.

[0013] Preferably, a limiting insertion rod is fixedly connected to the surface of the cleaning brush, and the limiting insertion rod is clamped to the mounting plate. The middle of the cleaning brush is fixedly connected with a bolt, and the bolt is movably connected to the mounting plate. A nut is threadedly connected to the surface of the bolt, and the nut is in close contact with the mounting plate. Through the limiting insertion rod, the cleaning brush is limited, improving the stability of the use of the cleaning brush.

[0014] The present utility model provides a chain tension adjusting mechanism, and its beneficial effects are as follows:

[0015] In this chain tension adjusting mechanism, a pulling force is provided to the sliding block through the adjusting spring, so that the tensioning sprocket tensions the chain, improving the stability of the transmission of the tensioning sprocket. Through the cleaning brush, the chain is cleaned, preventing the mud and dirt on the surface of the chain from hindering the chain transmission. Through the air cylinder, air is delivered into the oil storage barrel, increasing the air pressure inside the oil storage barrel. The oil storage barrel delivers the lubricating oil into the oil distribution shell through the oil delivery pipe, and the chain is lubricated through the oil distribution shell, improving the stability of the chain transmission.

[0016] This chain tension adjustment mechanism fixes and supports the chain through two groups of fixed sprockets, improving the stability of the tension sprocket in tensioning the chain. Through the sliding groove, the sliding block is fixed and positioned, enhancing the stability of the up-and-down sliding of the sliding block. Through the telescopic slide rod, the adjusting spring is fixed, preventing the adjusting spring from swinging and deforming randomly, and improving the stability of the compression and extension of the adjusting spring. The piston rod moves up and down driven by the sliding block, controlling the piston plate to slide up and down in the air cylinder, squeezing out the air inside the air cylinder. Through the one-way valve, outside air enters the air cylinder, and the air inside the air cylinder is prevented from flowing out, improving the stability of the air cylinder in delivering air.

[0017] This chain tension adjustment mechanism transports the air squeezed out inside the air cylinder to the inside of the oil storage barrel through the air delivery pipe. Through the oil-brushing pad, the lubricating oil flowing out of the oil separation shell is evenly dispersed on the surface of the oil-brushing pad. The chain is washed by the oil-brushing pad, preventing the chain from rusting and improving the stability of the chain drive. Through the counterweight ball, the bottom end of the oil delivery pipe is located at the bottom of the oil storage barrel, enhancing the stability of the oil delivery pipe in transmitting lubricating oil. Through the limit insertion rod, the cleaning brush is limited, improving the stability of the use of the cleaning brush. The cleaning brush is fixed on the surface of the mounting plate through the nut and the bolt. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the adjustment mechanism of the present utility model

[0020] Figure 3 It is a schematic diagram of the connection structure of the oil-brushing pad of the present utility model;

[0021] Figure 4 It is a schematic diagram of the connection structure of the cleaning brush of the present utility model;

[0022] Figure 5 It is a schematic diagram of the internal structure of the air cylinder of the present utility model.

[0023] Reference Signs: 1, mounting plate; 2, fixed sprocket; 3, adjustment mechanism; 4, maintenance mechanism;

[0024] 3, adjustment mechanism; 301, tension sprocket; 302, sliding groove; 303, sliding block; 304, adjusting spring; 305, telescopic slide rod;

[0025] 4, maintenance mechanism; 401, cleaning brush; 402, limit insertion rod; 403, bolt; 404, oil separation shell; 405, oil-brushing pad; 406, nut; 407, oil storage barrel; 408, oil delivery pipe; 409, air cylinder; 410, piston plate; 411, one-way valve; 412, piston rod; 413, air delivery pipe; 414, counterweight ball. Detailed implementation manners

[0026] An embodiment of the utility model provides a chain tension adjusting mechanism.

[0027] Please refer to Figure 1 and Figure 2 , which includes a mounting plate 1. An adjusting mechanism 3 for tensioning the chain is arranged in the middle of the mounting plate 1. The adjusting mechanism 3 includes a tensioning sprocket 301 and an adjusting spring 304. The bottom end of the adjusting spring 304 is fixedly connected with a sliding block 303, and the tensioning sprocket 301 is rotatably connected with the sliding block 303. The adjusting spring 304 provides a pulling force on the sliding block 303, so that the tensioning sprocket 301 tensions the chain and improves the transmission stability of the tensioning sprocket 301.

[0028] Two groups of fixed sprockets 2 are rotatably connected to the surface of the mounting plate 1. A sliding groove 302 is formed on the surface of the mounting plate 1, and the sliding block 303 slides inside the sliding groove 302. The two groups of fixed sprockets 2 are used to fix and support the chain, improving the stability of the tensioning sprocket 301 in tensioning the chain. The sliding groove 302 is used to fix and position the sliding block 303, improving the stability of the up and down sliding of the sliding block 303.

[0029] A telescopic sliding rod 305 is arranged inside the adjusting spring 304, and both ends of the telescopic sliding rod 305 are fixedly connected with the sliding block 303 and the mounting plate 1 respectively. The telescopic sliding rod 305 is used to fix the adjusting spring 304, preventing the adjusting spring 304 from swinging and deforming randomly, and improving the stability of the compression and extension of the adjusting spring 304.

[0030] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 , a maintenance mechanism 4 for cleaning the chain is arranged in the middle of the mounting plate 1. The maintenance mechanism 4 includes a cleaning brush 401, an oil distribution shell 404, an oil storage barrel 407 and an air cylinder 409. An oil delivery pipe 408 is fixedly communicated inside the oil storage barrel 407, and the top end of the oil delivery pipe 408 is fixedly communicated with the oil distribution shell 404. The cleaning brush 401 is used to clean the chain, preventing the mud and dirt on the surface of the chain from hindering the chain transmission. The air cylinder 409 is used to convey air into the oil storage barrel 407, making the air pressure inside the oil storage barrel 407 higher. The oil storage barrel 407 conveys the lubricating oil into the oil distribution shell 404 through the oil delivery pipe 408, and the chain is lubricated through the oil distribution shell 404, improving the transmission stability of the chain.

[0031] The oil storage barrel 407 and the air pump 409 are both fixed on the surface of the mounting plate 1. A piston plate 410 is slidably connected inside the air pump 409. A piston rod 412 is fixedly connected to the middle of the piston plate 410, and the top end of the piston rod 412 penetrates through the air pump 409 and is fixedly connected to the sliding block 303. The piston rod 412 is driven by the sliding block 303 to move up and down, controlling the piston plate 410 to slide up and down inside the air pump 409, and squeezing out the air inside the air pump 409.

[0032] A one-way valve 411 is fixedly communicated with the surface of the piston plate 410. An air delivery pipe 413 is fixedly communicated with the bottom end of the air pump 409, and the top end of the air delivery pipe 413 is fixedly communicated with the oil storage barrel 407. Through the one-way valve 411, outside air enters the inside of the air pump 409, and the air inside the air pump 409 is prevented from flowing out, improving the stability of the air delivery of the air pump 409. Through the air delivery pipe 413, the air squeezed out inside the air pump 409 is delivered into the oil storage barrel 407.

[0033] A brush oil pad 405 is clamped on the oil distribution shell 404, and the brush oil pad 405 is communicated with the holes on the inner wall of the oil distribution shell 404. The oil distribution shell 404 is fixedly communicated with the mounting plate 1. A counterweight ball 414 is fixedly connected to the bottom end of the oil delivery pipe 408. By clamping the brush oil pad 405, it is convenient to replace a new one in time when the brush oil pad 405 is damaged. Through the brush oil pad 405, the lubricating oil flowing out of the oil distribution shell 404 is evenly dispersed on the surface of the brush oil pad 405, and the chain is washed through the brush oil pad 405 to prevent the chain from rusting and improve the stability of chain transmission. Through the counterweight ball 414, the bottom end of the oil delivery pipe 408 is located at the bottom of the oil storage barrel 407, improving the stability of the oil delivery pipe 408 for transmitting lubricating oil.

[0034] A limit insertion rod 402 is fixedly connected to the surface of the cleaning brush 401, and the limit insertion rod 402 is clamped with the mounting plate 1. A bolt 403 is fixedly connected to the middle of the cleaning brush 401, and the bolt 403 is movably connected with the mounting plate 1. A nut 406 is threadedly connected to the surface of the bolt 403, and the nut 406 is in close contact with the mounting plate 1. Through the limit insertion rod 402, the cleaning brush 401 is limited, improving the stability of the use of the cleaning brush 401. Through the nut 406 and the bolt 403, the cleaning brush 401 is fixed on the surface of the mounting plate 1, making it convenient to replace a new one in time when the cleaning brush 401 is damaged.

[0035] When the utility model is in use: the tension spring 304 is adjusted to provide a pulling force to the sliding block 303, so that the tension sprocket 301 tensions the chain. The chain moves inside the cleaning brush 401 to wash off the mud and impurities on the surface of the chain, reducing the occurrence of abnormal transmission. When there is an obstacle or a change in the chain drive, the tension of the chain changes. By adjusting the pulling force of the tension spring 304, the sliding block 303 swings up and down. The sliding block 303 drives the piston rod 412 to move up and down, controlling the piston plate 410 to slide up and down in the air cylinder 409. The gas inside the air cylinder 409 is transported through the air pipe 413 to the inside of the oil storage barrel 407, increasing the air pressure in the oil storage barrel 407. Then, the lubricating oil inside the oil storage barrel 407 is transported through the oil pipe 408 to the inside of the oil distribution shell 404. The lubricating oil flowing out of the oil distribution shell 404 is evenly dispersed on the surface of the oil brushing pad 405. The chain is washed through the oil brushing pad 405 to maintain the chain. Through the above device, when the chain tightness changes, the chain is automatically maintained, avoiding the occurrence of abnormal chain drive and improving the stability of chain drive.

[0036] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A chain tension adjusting mechanism, comprising a mounting plate (1), characterized in that: A tensioning mechanism (3) for the chain is provided in the middle of the mounting plate (1). The tensioning mechanism (3) includes a tensioning sprocket (301) and a tensioning spring (304). The bottom end of the tensioning spring (304) is fixedly connected to a sliding block (303), and the tensioning sprocket (301) is rotatably connected to the sliding block (303). A maintenance mechanism (4) for cleaning the chain is provided in the middle of the mounting plate (1). The maintenance mechanism (4) includes a cleaning brush (401), an oil distribution housing (404), an oil storage barrel (407) and a gas cylinder (409). An oil delivery pipe (408) is fixedly communicated inside the oil storage barrel (407), and the top end of the oil delivery pipe (408) is fixedly communicated with the oil distribution housing (404).

2. The chain tension adjusting mechanism according to claim 1, characterized in that: Two fixed sprockets (2) are rotatably connected to the surface of the mounting plate (1). A sliding groove (302) is formed on the surface of the mounting plate (1), and the sliding block (303) slides inside the sliding groove (302).

3. The chain tension adjusting mechanism according to claim 1, wherein: A telescopic sliding rod (305) is arranged inside the tensioning spring (304), and both ends of the telescopic sliding rod (305) are fixedly connected to the sliding block (303) and the mounting plate (1) respectively.

4. A chain tension adjustment mechanism according to claim 1, characterized in that: The oil storage barrel (407) and the gas cylinder (409) are both fixed on the surface of the mounting plate (1). A piston plate (410) is slidably connected inside the gas cylinder (409). A piston rod (412) is fixedly connected to the middle of the piston plate (410), and the top end of the piston rod (412) penetrates through the gas cylinder (409) and is fixedly connected to the sliding block (303).

5. A chain tension adjusting mechanism according to claim 4, characterized in that: A check valve (411) is fixedly communicated with the surface of the piston plate (410). An air delivery pipe (413) is fixedly communicated with the bottom end of the gas cylinder (409), and the top end of the air delivery pipe (413) is fixedly communicated with the oil storage barrel (407).

6. A chain tension adjusting mechanism according to claim 1, characterized in that: An oil brushing pad (405) is clamped on the oil distribution housing (404), and the oil brushing pad (405) is communicated with the holes on the inner wall of the oil distribution housing (404). The oil distribution housing (404) is fixedly communicated with the mounting plate (1). A counterweight ball (414) is fixedly communicated with the bottom end of the oil delivery pipe (408).

7. The chain tension adjusting mechanism according to claim 1, characterized in that: A limiting insertion rod (402) is fixedly connected to the surface of the cleaning brush (401), and the limiting insertion rod (402) is clamped with the mounting plate (1). A bolt (403) is fixedly connected to the middle of the cleaning brush (401), and the bolt (403) is movably connected with the mounting plate (1). A nut (406) is threadedly connected to the surface of the bolt (403), and the nut (406) is in close contact with the mounting plate (1).

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