Full-automatic constant-pressure lubricating device for chain type structure

Abstract

The invention relates to the field of constant-pressure lubrication, in particular to a full-automatic constant-pressure lubrication device for a chain structure, which comprises a frame, a driving chain wheel and a driven chain wheel are rotationally arranged on the frame, and a chain is arranged outside the driving chain wheel and the driven chain wheel; the frame is provided with a lubricating mechanism used for lubricating the connecting position of the chain and the driven chain wheel. The frame is further provided with an oil supply pipe used for supplying oil to the lubricating mechanism. The device has the beneficial effects that the driven chain wheel rotates to drive the rotating shaft to rotate, so that the plugging assembly rotates, and when the plugging assembly rotates to the baffle, the baffle extrudes the plugging assembly, so that the oil conveying channel corresponding to the plugging assembly is opened, and the oil outlet communicating with the oil conveying channel discharges lubricating oil; and the lubricating oil enters the joint of the driven chain wheel and the chain, so that the purpose of automatically lubricating the joint of the driven chain wheel and the chain when the driven chain wheel rotates is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of constant pressure lubrication, and in particular to a full-automatic constant pressure lubrication device for a chain structure. Background Art

[0002] In the modern industrial field, chain structures are an important part of transmission and conveying equipment and are widely used in various mechanical equipment. Chains and sprockets are the core components of chain structures, and their operating conditions directly affect the performance and life of the entire equipment. However, during long-term operation, the friction between the chain and sprocket and between the chain plates will cause wear and heat accumulation, which will not only reduce the transmission efficiency of the equipment, but may also cause failures and even cause equipment downtime. Therefore, it is particularly important to lubricate the chain structure regularly and effectively.

[0003] Traditional chain structure lubrication methods mostly use manual application or dripping oil lubrication, which has many shortcomings. First of all, manual application of grease is not only inefficient, but also difficult to ensure the uniformity and timeliness of lubrication, especially in high-speed chain structures, where manual application is almost impossible. Secondly, although dripping oil lubrication can continuously provide lubrication for the chain, it is difficult to accurately control the amount and position of the lubricant, which often leads to waste of lubricant and environmental pollution. In addition, traditional lubrication methods cannot provide targeted lubrication for the contact positions of the chain and sprocket and the contact positions between the chain plates. These positions are precisely the areas with the most severe friction and wear.

[0004] In order to solve the above problems, a fully automatic constant pressure lubrication device for chain structure came into being, which realizes the precise lubrication of the contact position between chain and sprocket and the contact position between chain and chain plate. The device adopts a constant pressure oil supply system, which can ensure that the lubricating oil can be continuously and stably supplied to the lubrication point during the operation of the chain, thereby effectively reducing friction and wear and extending the service life of the chain and sprocket. Summary of the invention

[0005] In order to solve the above problems, an embodiment of the present invention provides a fully automatic constant pressure lubrication device for a chain structure, which achieves the purpose of solving the problems raised in the background technology.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical scheme: a fully automatic constant pressure lubrication device for a chain structure, comprising a frame, a driving sprocket and a driven sprocket are rotatably arranged on the frame, and a chain is arranged outside the driving sprocket and the driven sprocket; a lubrication mechanism for lubricating the connection between the chain and the driven sprocket is arranged on the frame; an oil supply pipe for supplying oil to the lubrication mechanism is also arranged on the frame;

[0007] The lubrication mechanism includes a rotating shaft rotatably arranged inside the frame, an oil delivery channel opened inside the rotating shaft, an oil outlet opened inside the driven sprocket and connected to the oil delivery channel, a plugging component arranged inside the rotating shaft for opening and closing the oil delivery channel, and a baffle arranged on the frame for squeezing the plugging component to move; the driven sprocket is fixedly connected to the rotating shaft;

[0008] When the driven sprocket drives the rotating shaft to rotate, the oil delivery channel is opened and closed by squeezing the blocking component by the baffle.

[0009] As a further improvement of the above technical solution:

[0010] The side of the baffle plate close to the plugging assembly is a gradually changing curved surface. When the plugging assembly moves to the middle position of the baffle plate, the plugging assembly completely opens the oil delivery channel.

[0011] The blocking assembly includes a slide groove opened inside the rotating shaft and connected to the oil delivery channel, a blocking block slidably arranged inside the slide groove, a through groove opened inside the blocking block for connecting to the oil delivery channel, and a spring 1 arranged on one side of the blocking block; a pulley is rotatably connected to one side of the blocking block that contacts the baffle.

[0012] The end of the oil delivery channel connected to the chute is provided with a sealing ring; the blocking block is provided with a conical surface 1, and the inside of the chute is provided with a conical surface 2 for sealing in cooperation with the conical surface 1.

[0013] The baffle is arranged on the frame through an adjusting assembly; when the rotating shaft stops rotating, the adjusting assembly separates the baffle and the blocking assembly.

[0014] The adjustment assembly includes a guide rail fixedly connected to the frame, a connecting rod rotatably arranged inside the guide rail, a gear 1 fixedly connected to the end of the connecting rod, a gear 2 fixedly connected to the rotating shaft and meshing with the gear 1, a collar 1 sleeved outside the connecting rod, a collar 2 rotatably arranged outside the collar 1, a slider slidably arranged inside the guide rail and rotatably arranged outside the collar 2, a pawl structure arranged inside the collar 1 and the collar 2, and a resistance structure arranged inside the collar 2 and the slider;

[0015] A guide groove is provided on the surface of the connecting rod, and a guide block which cooperates with the guide groove is fixedly connected inside the first sleeve ring.

[0016] The pawl structure comprises a ratchet wheel fixedly connected to the inner side of the second collar and a pawl arranged on the outer side of the first collar.

[0017] The resistance structure includes a gear three fixedly connected to the outside of the ring two, and a plurality of gears four rotatably arranged inside the slider and meshing with the gear three.

[0018] The resistance structure comprises a resistance wheel fixedly connected to the outer side of the second sleeve ring, a wave groove opened outside the resistance wheel, and a movable pin elastically slidably arranged inside the sliding block through the second spring.

[0019] The oil outlet is located at the tooth groove of the driven sprocket, specifically: the oil outlet is located on both sides of the contact position between the tooth groove of the driven sprocket and the chain.

[0020] The beneficial effects of the embodiments of the present invention are:

[0021] In actual use, the driven sprocket drives the rotating shaft to rotate after rotating, so that the plugging assembly rotates. When the plugging assembly rotates to the baffle, the baffle squeezes the plugging assembly, so that the oil delivery channel corresponding to the plugging assembly is opened, and the oil outlet connected to the oil delivery channel can discharge the lubricating oil, so that the lubricating oil enters the connection between the driven sprocket and the chain, that is, the purpose of automatically lubricating the connection between the driven sprocket and the chain is achieved when the driven sprocket rotates.

[0022] In actual use, the baffle can squeeze multiple sealing components at the same time, that is, multiple oil outlets can discharge lubricating oil. The oil outlets that need to discharge oil can be controlled by changing the length of the baffle, that is, the oil outlets in contact with the chain can discharge oil, thereby ensuring the lubrication effect between the driven sprocket and the chain; while the oil outlets that are not in contact with the chain will not discharge oil, thereby avoiding the contamination caused by the dripping of lubricating oil after the oil outlets that are not in contact with the chain discharge oil;

[0023] In actual use, when the driven sprocket stops rotating, the rotating shaft stops rotating, and at this time, the baffle is separated from the plugging component under the action of the adjusting component, so that the oil delivery channel is completely closed, to prevent the baffle from continuously squeezing the plugging component and causing the lubricating oil to drip;

[0024] The oil outlet is located on both sides of the contact position between the driven sprocket tooth groove and the chain, which can avoid the contact position between the chain and the driven sprocket, so that the position where the driven sprocket contacts the chain is smoother, avoiding accelerated wear due to the uneven contact position caused by the opening of the oil outlet; at the same time, the oil outlet is located on both sides of the contact position between the driven sprocket tooth groove and the chain, so that the lubricating oil discharged from the oil outlet can better enter between the chain plates in the chain, that is, to perform targeted lubrication and improve the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention from a first viewing angle;

[0026] Figure 2 It is a structural schematic diagram of the second viewing angle of the present invention;

[0027] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0028] Figure 4 It is a cross-sectional schematic diagram of the lubrication mechanism of the present invention;

[0029] Figure 5 It is a cross-sectional schematic diagram of the rotating shaft of the present invention;

[0030] Figure 6 for Figure 5 A schematic diagram of the structure enlargement at the center A;

[0031] Figure 7 It is a structural schematic diagram of the adjustment component of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the guide rail of the present invention;

[0033] Fig. 9 It is a structural schematic diagram of the slider of the present invention;

[0034] Fig.10 This is a schematic structural diagram of a first embodiment of a resistance structure of the present invention;

[0035] Fig.11 This is a schematic diagram of the structure of the second embodiment of the resistance structure of the present invention;

[0036] Fig.12 It is a cross-sectional schematic diagram of the driven sprocket of the present invention from a first viewing angle;

[0037] Fig.13 is a cross-sectional schematic diagram of the driven sprocket of the present invention from a second viewing angle;

[0038] Fig.14 It is a schematic structural diagram of the driven sprocket of the present invention.

[0039] In the figure: 1. frame; 2. driving sprocket; 3. driven sprocket; 4. chain; 5. lubrication mechanism; 6. oil supply pipe; 7. adjustment assembly; 8. guide groove; 9. guide block;

[0040] 51. rotating shaft; 52. oil delivery channel; 53. oil outlet; 54. plugging assembly; 55. baffle;

[0041] 541, slide groove; 542, block; 543, through groove; 544, spring 1; 545, pulley; 546, sealing ring; 547, cone surface 1; 548, cone surface 2;

[0042] 71. Guide rail; 72. Connecting rod; 73. Gear 1; 74. Gear 2; 75. Ring 1; 76. Ring 2; 77. Slider; 78. Ratchet structure; 79. Resistance structure;

[0043] 781, ratchet; 782, pawl;

[0044] 791. Gear three; 792. Gear four; 793. Resistance wheel; 794. Wave groove; 795. Spring two; 796. Movable pin. DETAILED DESCRIPTION

[0045] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0046] See also Figures 1 to 14 The embodiment of the present invention discloses a fully automatic constant pressure lubrication device for a chain structure, comprising a frame 1, on which a driving sprocket 2 and a driven sprocket 3 are rotatably arranged, and a chain 4 is arranged outside the driving sprocket 2 and the driven sprocket 3; a lubrication mechanism 5 for lubricating the connection between the chain 4 and the driven sprocket 3 is arranged on the frame 1; an oil supply pipe 6 for supplying oil to the lubrication mechanism 5 is also arranged on the frame 1; the oil supply pipe 6 is externally connected to an oil pump, and lubricating oil is pumped into the lubrication mechanism 5 through the oil pump;

[0047] A motor for driving the driving sprocket 2 to rotate is installed on the frame 1. After the motor is started, the driving sprocket 2 is driven to rotate, thereby driving the driven sprocket 3 to rotate through the chain 4; as the driven sprocket 3 rotates, the lubricating mechanism 5 passes the lubricating oil into the connection between the chain 4 and the driven sprocket 3;

[0048] The lubrication mechanism 5 includes a rotating shaft 51 rotatably arranged inside the frame 1, an oil delivery channel 52 opened inside the rotating shaft 51, an oil outlet 53 opened inside the driven sprocket 3 and connected to the oil delivery channel 52, a plugging component 54 arranged inside the rotating shaft 51 for opening and closing the oil delivery channel 52, and a baffle 55 arranged on the frame 1 for squeezing the plugging component 54 to move; the driven sprocket 3 is fixedly connected to the rotating shaft 51; the oil supply pipe 6 is rotatably connected to one end of the rotating shaft 51, so that the oil supply pipe 6 and the oil delivery channel 52 are connected;

[0049] There are multiple oil delivery channels 52, and multiple oil outlets 53 are respectively connected to the oil delivery channels 52. Multiple plugging components 54 respectively control the opening and closing of the multiple oil delivery channels 52. When the baffle 55 squeezes the plugging component 54, the plugging component 54 moves, so that the oil delivery channel 52 corresponding to the plugging component 54 is opened.

[0050] When the driven sprocket 3 drives the rotating shaft 51 to rotate, the oil delivery channel 52 is opened and closed by squeezing the blocking component 54 by the baffle 55;

[0051] In actual use, after the driven sprocket 3 rotates, it drives the rotating shaft 51 to rotate, so that the blocking component 54 rotates. When the blocking component 54 rotates to the baffle 55, the baffle 55 squeezes the blocking component 54, so that the oil delivery channel 52 corresponding to the blocking component 54 is opened, so that the oil outlet 53 connected to the oil delivery channel 52 can discharge the lubricating oil, so that the lubricating oil enters the connection between the driven sprocket 3 and the chain 4, that is, the purpose of automatically lubricating the connection between the driven sprocket 3 and the chain 4 is achieved when the driven sprocket 3 rotates.

[0052] In actual use, the baffle 55 can squeeze multiple sealing components 54 at the same time, so that multiple oil outlets 53 can discharge lubricating oil. The oil outlet 53 that needs to discharge oil can be controlled by changing the length of the baffle 55, so that the oil outlet 53 in contact with the chain 4 can discharge oil, thereby ensuring the lubrication effect between the driven sprocket 3 and the chain 4; while the oil outlet 53 that is not in contact with the chain 4 will not discharge oil, thereby avoiding the lubricating oil dripping and causing pollution after the oil outlet 53 that is not in contact with the chain 4 discharges oil.

[0053] As a further illustration of this application:

[0054] The side of the baffle 55 close to the plugging assembly 54 is a gradually curved surface. When the plugging assembly 54 moves to the middle position of the baffle 55, the plugging assembly 54 completely opens the oil delivery channel 52.

[0055] In actual use, the plugging component 54 rotates with the rotation of the rotating shaft 51, so that the plugging component 54 and the baffle 55 move relative to each other; specifically, as the plugging component 54 rotates, the plugging component 54 enters the baffle 55 from one end of the baffle 55, that is, the plugging component 54 is squeezed by the baffle 55, and at this time, the plugging component 54 slightly opens the corresponding oil delivery channel 52, that is, a small amount of lubricating oil is discharged from the oil outlet 53; as the plugging component 54 continues to rotate, the degree of squeezing of the plugging component 54 by the baffle 55 increases, that is, the opening degree of the oil delivery channel 52 gradually increases, that is, the oil output of the oil outlet 53 gradually increases;

[0056] As the plugging assembly 54 continues to rotate, when the plugging assembly 54 rotates to the middle position of the baffle 55, the plugging assembly 54 is compressed to the limit position by the baffle 55, that is, the oil delivery channel 52 is fully opened, and the oil output of the oil outlet 53 reaches the maximum.

[0057] As the plugging assembly 54 continues to rotate, the degree of compression of the plugging assembly 54 by the baffle 55 gradually decreases, that is, the opening degree of the oil delivery channel 52 gradually decreases, that is, the oil output of the oil outlet 53 gradually decreases; when the plugging assembly 54 is separated from the other end of the baffle 55, the oil delivery channel 52 is closed;

[0058] The oil output of the oil outlet 53 is adjusted by the baffle plate 55, so that when a certain section of the chain 4 just contacts the driven sprocket 3, the oil outlet 53 discharges a small amount of oil, and as the certain section of the chain 4 moves on the driven sprocket 3, the oil output of the oil outlet 53 gradually increases. When the certain section of the chain 4 moves to the middle position of the driven sprocket 3, the oil output of the oil outlet 53 reaches a maximum. The purpose is that when a certain section of the chain 4 just contacts the driven sprocket 3, the oil output of the oil outlet 53 is small, so as to prevent the lubricating oil from dripping and causing pollution due to excessive oil output. When the certain section of the chain 4 moves to the middle position of the driven sprocket 3, the oil output reaches a maximum. Even if the lubricating oil drips from this position, the dripping lubricating oil will move along the chain 4 to prevent the dripping lubricating oil from causing pollution.

[0059] As a further illustration of this application:

[0060] The blocking assembly 54 includes a slide groove 541 provided inside the rotating shaft 51 and connected to the oil delivery channel 52, a blocking block 542 slidably provided inside the slide groove 541, a through groove 543 provided inside the blocking block 542 and connected to the oil delivery channel 52, and a spring 544 provided on one side of the blocking block 542;

[0061] When the block 542 contacts the baffle 55, the baffle 55 squeezes the block 542, thereby pressing the block 542 into the interior of the slide groove 541, so that the through groove 543 is connected to the oil delivery channel 52, and the oil delivery channel 52 can be used for oil delivery; as the block 542 is gradually pressed into the slide groove 541, the overlapping area of ​​the through groove 543 and the oil delivery channel 52 gradually increases, that is, the oil delivery amount of the oil delivery channel 52 gradually increases;

[0062] The side of the blocking block 542 that contacts the baffle 55 is rotatably connected to a pulley 545, so that the blocking block 542 contacts the baffle 55 through the pulley 545, thereby reducing the moving friction of the blocking block 542 on the baffle 55;

[0063] Through the gradual curved surface of the baffle 55, the block 542 can be slowly extended from the slide groove 541. When the block 542 is separated from the baffle 55, the block 542 is just completely extended from the slide groove 541, so that the spring 1 544 can be slowly compressed and released, thereby avoiding the block 542 from violently colliding inside the slide groove 541 due to the too fast release of the elastic force of the spring 1 544, which affects the service life of the blocking component 54.

[0064] As a further illustration of this application:

[0065] The end of the oil delivery channel 52 connected to the slide groove 541 is provided with a sealing ring 546; the block 542 is provided with a conical surface 1 547, and the interior of the slide groove 541 is provided with a conical surface 2 548 used for sealing in cooperation with the conical surface 1 547;

[0066] The sealing performance is improved by using a sealing ring 546, and a conical surface seal is formed by using conical surface 1 547 and conical surface 2 548 to improve the sealing performance.

[0067] As a further illustration of this application:

[0068] The baffle 55 is set on the frame 1 through the adjustment component 7; when the rotating shaft 51 stops rotating, the adjustment component 7 separates the baffle 55 and the sealing component 54; in actual use, when the driven sprocket 3 stops rotating, the rotating shaft 51 stops rotating, and at this time, the baffle 55 is separated from the sealing component 54 under the action of the adjustment component 7, so that the oil delivery channel 52 is completely closed, so as to prevent the baffle 55 from continuously squeezing the sealing component 54 and causing continuous oil discharge and dripping of lubricating oil.

[0069] As a further illustration of this application:

[0070] The adjustment assembly 7 includes a guide rail 71 fixedly connected to the frame 1, a connecting rod 72 rotatably arranged inside the guide rail 71, a gear 1 73 fixedly connected to the end of the connecting rod 72, a gear 2 74 fixedly connected to the rotating shaft 51 and meshing with the gear 1 73, a collar 1 75 sleeved on the outside of the connecting rod 72, a collar 2 76 rotatably arranged outside the collar 1 75, a slider 77 slidably arranged inside the guide rail 71 and rotatably arranged outside the collar 2 76, a pawl structure 78 arranged inside the collar 1 75 and the collar 2 76, and a resistance structure 79 arranged inside the collar 2 76 and the slider 77; the slider 77 is fixedly connected to the baffle 55;

[0071] A guide groove 8 is formed on the surface of the connecting rod 72, and a guide block 9 is fixedly connected to the inside of the collar 75 and cooperates with the guide groove 8;

[0072] When the rotating shaft 51 rotates, the gear 1 73 is driven to rotate through the gear 2 74, so that the connecting rod 72 is rotated. After the connecting rod 72 rotates, the slide block 77 is driven to slide to the end of the connecting rod 72 close to the blocking assembly 54 through the cooperation of the guide groove 8 and the guide block 9, so that the baffle 55 and the blocking assembly 54 are in contact.

[0073] When the rotating shaft 51 stops rotating, the blocking component 54 pushes the baffle 55 to move, so that the baffle 55 can no longer squeeze the blocking component 54, that is, the purpose of synchronously stopping the lubrication and oil discharge work when the driven sprocket 3 stops rotating is achieved;

[0074] When in actual use, after the driven sprocket 3 rotates, it drives the rotating shaft 51 to rotate, thereby driving the gear 2 74 to rotate, and the connecting rod 72 can be driven to rotate through the gear 1 73. When the connecting rod 72 rotates, the guide groove 8 and the guide block 9 cooperate to push the collar 1 75 to move. At this time, the collar 1 75 and the collar 2 76 cooperate with each other through the ratchet structure 78, so that the collar 1 75 and the collar 2 76 cannot rotate relative to each other, and the collar 2 76 can be pushed to move. At this time, due to the influence of the resistance structure 79, the collar 2 76 and the slider 77 do not rotate relative to each other, and finally the slider 77 is driven to move to the end of the connecting rod 72 close to the plugging assembly 54.

[0075] When the slider 77 moves to one end of the connecting rod 72, the connecting rod 72 continues to rotate, and the connecting rod 72 provides a rotational force to the collar 1 75 through the cooperation of the guide groove 8 and the guide block 9. When the rotational force is greater than the resistance of the resistance structure 79, the collar 2 76 and the slider 77 rotate relative to each other. At this time, the slider 77 can be stabilized to the end of the connecting rod 72 close to the blocking assembly 54, that is, the baffle 55 and the blocking assembly 54 are in contact.

[0076] When the driven sprocket 3 rotates, the connecting rod 72 stops rotating. At this time, the connecting rod 72 cannot provide rotational force to the ring 1 75 through the cooperation of the guide groove 8 and the guide block 9. Affected by the extrusion force between the blocking assembly 54 and the baffle 55, the ring 1 75 and the ring 2 76 can rotate in the opposite direction, so that the slider 77 can slide. At this time, the baffle 55 and the blocking assembly 54 are separated, that is, when the driven sprocket 3 stops rotating, the baffle 55 and the blocking assembly 54 are separated synchronously, so that the lubrication oil output work stops synchronously.

[0077] As a further illustration of this application:

[0078] The pawl structure 78 includes a ratchet 781 fixedly connected to the inner side of the second ring 76 and a pawl 782 arranged on the outer side of the first ring 75. Through the cooperation between the ratchet 781 and the pawl 782, only a single direction of relative rotation can occur between the first ring 75 and the second ring 76.

[0079] As an embodiment 1 of the resistance structure of the present application:

[0080] The resistance structure 79 includes a gear three 791 fixedly connected to the outside of the collar 2 76, and a plurality of gear fours 792 rotatably arranged inside the slider 77 and meshing with the gear three 791; when the collar 2 76 rotates, it is necessary to overcome the rotational resistance when the gear three 791 drives the gear four 792 to rotate, that is, the rotational resistance between the gear three 791 and the gear four 792 is used to provide resistance to the rotation of the collar 2 76 and the slider 77.

[0081] As the second embodiment of the resistance structure of the present application:

[0082] The resistance structure 79 includes a resistance wheel 793 fixedly connected to the outside of the second collar 76, a wave groove 794 opened on the outside of the resistance wheel 793, and a movable pin 796 elastically slidably arranged inside the slider 77 through the second spring 795; when the second collar 76 rotates, it drives the resistance wheel 793 to rotate, thereby squeezing the movable pin 796 through the wave groove 794, so that the second spring 795 is compressed, that is, the second collar 76 needs to overcome the friction between the resistance wheel 793 and the movable pin 796 when rotating, and also needs to overcome the elastic force of the second spring 795.

[0083] As a further illustration of this application:

[0084] The oil outlet 53 is located at the tooth groove of the driven sprocket 3. Specifically, the oil outlet 53 is located on both sides of the contact position between the tooth groove of the driven sprocket 3 and the chain 4 (such as Fig.14 As shown in the figure, the contact position between the chain 4 and the driven sprocket 3 can be avoided, so that the part where the driven sprocket 3 contacts the chain 4 is relatively smooth, and the accelerated wear caused by the uneven contact position due to the opening of the oil outlet 53 can be avoided; at the same time, the oil outlet 53 is located on both sides of the contact position between the tooth groove of the driven sprocket 3 and the chain 4, so that the lubricating oil discharged from the oil outlet 53 can better enter between the chain plates in the chain 4 (as shown in the figure). Fig.13 As shown), that is, targeted lubrication is carried out to improve the lubrication effect.

[0085] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0086] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0087] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0088] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A fully automatic constant pressure lubrication device for a chain structure, characterized in that: The invention comprises a frame (1), on which a driving sprocket (2) and a driven sprocket (3) are rotatably arranged, and a chain (4) is arranged outside the driving sprocket (2) and the driven sprocket (3); the frame (1) is provided with a lubricating mechanism (5) for lubricating the connection between the chain (4) and the driven sprocket (3); the frame (1) is also provided with an oil supply pipe (6) for supplying oil to the lubricating mechanism (5); The lubricating mechanism (5) comprises a rotating shaft (51) rotatably arranged inside the frame (1), an oil delivery channel (52) opened inside the rotating shaft (51), an oil outlet (53) opened inside the driven sprocket (3) and connected to the oil delivery channel (52), a blocking component (54) arranged inside the rotating shaft (51) for controlling the opening and closing of the oil delivery channel (52), and a baffle (55) arranged on the frame (1) for squeezing the blocking component (54) to move; the driven sprocket (3) is fixedly connected to the rotating shaft (51); When the driven sprocket (3) drives the rotating shaft (51) to rotate, the oil delivery channel (52) is opened and closed by pressing the blocking component (54) by the baffle (55).

2. The fully automatic constant pressure lubrication device for chain structure according to claim 1, characterized in that: The side of the baffle (55) close to the plugging assembly (54) is a gradually changing curved surface, and when the plugging assembly (54) moves to the middle position of the baffle (55), the plugging assembly (54) completely opens the oil delivery channel (52).

3. The fully automatic constant pressure lubrication device for chain structure according to claim 1, characterized in that: The blocking assembly (54) comprises a slide groove (541) provided inside the rotating shaft (51) and connected to the oil delivery channel (52), a blocking block (542) slidably provided inside the slide groove (541), a through groove (543) provided inside the blocking block (542) and used to communicate with the oil delivery channel (52), and a spring (544) provided on one side of the blocking block (542); a pulley (545) is rotatably connected to the side of the blocking block (542) that contacts the baffle (55).

4. The fully automatic constant pressure lubrication device for chain structure according to claim 3, characterized in that: The end of the oil delivery channel (52) connected to the slide groove (541) is provided with a sealing ring (546); the blocking block (542) is provided with a conical surface 1 (547), and the interior of the slide groove (541) is provided with a conical surface 2 (548) for sealing with the conical surface 1 (547).

5. The fully automatic constant pressure lubrication device for chain structure according to claim 1, characterized in that: The baffle (55) is arranged on the frame (1) via an adjusting assembly (7); when the rotating shaft (51) stops rotating, the adjusting assembly (7) causes the baffle (55) and the blocking assembly (54) to separate.

6. The fully automatic constant pressure lubrication device for chain structure according to claim 5, characterized in that: The adjustment assembly (7) comprises a guide rail (71) fixedly connected to the frame (1), a connecting rod (72) rotatably arranged inside the guide rail (71), a gear 1 (73) fixedly connected to the end of the connecting rod (72), a gear 2 (74) fixedly connected to the rotating shaft (51) and meshing with the gear 1 (73), a collar 1 (75) sleeved on the outside of the connecting rod (72), a collar 2 (76) rotatably arranged outside the collar 1 (75), a slider (77) slidably arranged inside the guide rail (71) and rotatably arranged outside the collar 2 (76), a ratchet structure (78) arranged inside the collar 1 (75) and the collar 2 (76), and a resistance structure (79) arranged inside the collar 2 (76) and the slider (77); A guide groove (8) is provided on the surface of the connecting rod (72), and a guide block (9) is fixedly connected to the interior of the first sleeve ring (75) and is used in conjunction with the guide groove (8).

7. The fully automatic constant pressure lubrication device for chain structure according to claim 6, characterized in that: The ratchet structure (78) comprises a ratchet wheel (781) fixedly connected to the inner side of the second collar (76) and a ratchet pawl (782) arranged on the outer side of the first collar (75).

8. The fully automatic constant pressure lubrication device for chain structure according to claim 6, characterized in that: The resistance structure (79) comprises a gear three (791) fixedly connected to the outside of the second sleeve ring (76), and a plurality of gear fours (792) rotatably arranged inside the slider (77) and meshing with the gear three (791).

9. The fully automatic constant pressure lubrication device for chain structure according to claim 6, characterized in that: The resistance structure (79) comprises a resistance wheel (793) fixedly connected to the outside of the second sleeve ring (76), a wave groove (794) opened outside the resistance wheel (793), and a movable pin (796) elastically slidably arranged inside the slider (77) through the second spring (795).

10. The fully automatic constant pressure lubrication device for chain structure according to claim 1, characterized in that: The oil outlet (53) is located at the tooth groove of the driven sprocket (3), specifically: the oil outlet (53) is located on both sides of the contact position between the tooth groove of the driven sprocket (3) and the chain (4).

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