Wear-resistant die forging chain

Abstract

The utility model relates to the technical field of die forging chains, in particular to a wear-resistant die forging chain. According to the technical scheme, the chain comprises a connecting pin shaft, a first chain plate and a second chain plate, first through pin holes are formed in the positions, close to the two ends, of the outer surface of the first chain plate, second through pin holes are formed in the positions, close to the two ends, of the outer surface of the second chain plate, and the connecting pin shaft penetrates through the first through pin holes and the second through pin holes; a lubricating oil cavity is formed in the connecting pin shaft, a plurality of oil outlet holes are evenly formed in the outer surface of the connecting pin shaft, a containing groove is formed in one end of the connecting pin shaft, and an oil injection nozzle is fixedly installed in the containing groove. According to the utility model, the rotary connecting part of the die forging chain can be well lubricated, so that the abrasion is reduced, the stable operation of the die forging chain is ensured, and the service life of the die forging chain is also prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to die forging chain technical field, concretely is a kind of wear-resistant die forging chain. BACKGROUND

[0002] Die forging chain (also known as die forging chain) is a kind of metal chain made by die forging process, that is, using die to exert pressure on metal material, so that it is plastically deformed in die cavity, and finally a part with specific shape and performance is formed, and die forging chain is mainly used in high-strength, high-wear-resistant industrial field scenes such as hoisting and transportation, mining machinery, oil drilling and industrial transmission.

[0003] At present, the rotating connection part of the die forging chain is prone to large wear due to friction under long-term high-strength use, which affects the normal use of the die forging chain and reduces the service life, therefore, we propose a wear-resistant die forging chain. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of wear-resistant die forging chain, with good lubricating effect on the rotating connection part of die forging chain, to reduce wear, ensure the stable operation of die forging chain, and prolong the service life of die forging chain, solve the problem that the rotating connection part of the die forging chain is prone to large wear due to friction under long-term high-strength use, which affects the normal use of the die forging chain and reduces the service life.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of wear-resistant die forging chain, comprising connecting pin shaft, first chain plate and second chain plate, the first chain plate outer surface is close to the position at both ends and is provided with first through pin hole, the second chain plate outer surface is close to the position at both ends and is provided with second through pin hole, the connecting pin shaft passes through first through pin hole and second through pin hole, the connecting pin shaft is provided with lubricating oil cavity inside, the connecting pin shaft outer surface is uniformly provided with a plurality of oil outlet holes, the connecting pin shaft one end is provided with accommodating recess, and oil filler neck is fixedly installed in accommodating recess inside.

[0006] Preferably, the lubricating oil cavity is provided with a sponge block inside, so that the lubricating oil inside the lubricating oil cavity can be soaked into the sponge block, and the lubricating oil is slowly exuded from the oil outlet hole through the sponge block, to prolong the injection period of the lubricating oil inside the lubricating oil cavity, and save the use of lubricating oil.

[0007] Preferably, the connecting pin shaft outer surface is close to the position at both ends and is provided with annular clamping groove, and annular clamping groove is provided with snap spring inside, and snap spring plays a limiting role on the first chain plate, and through the fixed limiting mode of snap spring and annular clamping groove, the connecting pin shaft, first chain plate and second chain plate are convenient to disassemble, so as to facilitate the disassembly of die forging chain.

[0008] Preferably, the connecting pin shaft outer surface is movably sleeved with a retaining ring near the position of the two annular clamping grooves, and the retaining ring is located between the snap spring and the first chain plate, and the retaining ring plays a limiting role on the first chain plate.

[0009] Preferably, the first chain plate inner side is provided with a first circular step near the position of the two first through pin holes, the second chain plate outer surface is provided with a second circular step on both sides near the position of the two second through pin holes, and the first circular step and the second circular step are in contact, and the outer surface of the first circular step and the second circular step is movably sleeved with an external sealing ring, the lubricating oil seeps into the contact surface of the first circular step and the second circular step to play a lubricating role, and the external sealing ring seals the first circular step and the second circular step by sleeving to reduce the loss of lubricating oil between the first circular step and the second circular step.

[0010] Preferably, the first chain plate outer side is provided with an annular groove near the position of the two first through pin holes, the annular groove is provided with an internal sealing ring inside, and the internal sealing ring is movably sleeved on the outer surface of the connecting pin shaft, so as to seal the gap between the first through pin hole and the connecting pin shaft, prevent the lubricating oil from seeping out, save the loss of lubricating oil, and reduce the cost.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、The utility model discloses a first chain plate, a first through pin hole, a second chain plate, a second through pin hole, a connecting pin shaft, a lubricating oil cavity, a containing groove, an oil nozzle and an oil outlet are arranged, which can play a good lubricating role on the rotating connection part of the die forging chain, reduce wear and tear, ensure stable operation of the die forging chain, and prolong the service life of the die forging chain.

[0013] 2、The utility model discloses a sponge block, which can soak up the lubricating oil in the lubricating oil cavity, and make the lubricating oil slowly seep out of the oil outlet, thereby prolonging the injection period of the lubricating oil in the lubricating oil cavity and saving the use of lubricating oil.

[0014] 3. The utility model discloses a first circular step, second circular step and external sealing ring can reduce lubricating oil consumption, save the effect of cost, and the contact surface of lubricating oil seeps into the first circular step and second circular step, plays the role of lubrication, and the external sealing ring seals by the first circular step and second circular step sleeve, reduces the loss of lubricating oil between the first circular step and second circular step.

[0015] 4. The utility model discloses a first through pin hole and connecting pin shaft gap between the sealing effect of ring groove and internal sealing ring, prevent lubricating oil seepage, save lubricating oil consumption, reduce cost. DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the connecting pin shaft partial three-dimensional structure schematic diagram of the utility model;

[0018] Figure 3 It is the main view structure schematic diagram of the utility model;

[0019] Figure 4 It is the main cross section structure schematic diagram of the utility model.

[0020] Signification of drawing: 1, connecting pin shaft;2, first chain plate;3, ring groove;4, first through pin hole;5, first circular step;6, external sealing ring;7, second chain plate;8, second circular step;9, second through pin hole;10, accommodating recess;11, oil filler nozzle;12, annular clamping groove;13, baffle ring;14, internal sealing ring;15, oil outlet hole;16, clamping spring;17, lubricating oil cavity;18, sponge block. Specific implementation

[0021] The technical scheme of the utility model will be further explained below in combination with the drawings and specific embodiments.

[0022] Embodiment one

[0023] As Figures 1-4The utility model provides a wear -resisting type die forging chain, including connecting pin shaft 1, first chain plate 2 and second chain plate 7, first chain plate 2 outer surface near both end position department all are provided with first through -hole 4, second chain plate 7 outer surface near both end position department all are provided with second through -hole 9, and connecting pin shaft 1 passes through first through -hole 4 and second through -hole 9, connecting pin shaft 1 outer surface near both end position department all are provided with annular clamping groove 12, and annular clamping groove 12 inside is provided with snap spring 16, and the movable sleeve of stop ring 13 is provided with the movable sleeve of stop ring 13 in the position of two annular clamping grooves 12 of connecting pin shaft 1 outer surface, and stop ring 13 is located between snap spring 16 and first chain plate 2, and the dismounting of connecting pin shaft 1 is convenient through snap spring 16, annular clamping groove 12 and stop ring 13 limit, thereby the dismounting of die forging chain is convenient, connecting pin shaft 1 inside is provided with lubricating oil cavity 17, and connecting pin shaft 1 outer surface evenly is provided with a plurality of oil outlet holes 15, lubricating oil cavity 17 inside is provided with sponge block 18, and the lubricating oil in lubricating oil cavity 17 can soak into sponge block 18 inside, and the injection period of the lubricating oil in lubricating oil cavity 17 is prolonged by the slow seepage of lubricating oil from oil outlet hole 15 through sponge block 18, and the use of lubricating oil is saved, and one end of connecting pin shaft 1 is provided with containing recess 10, and oil filler neck 11 is fixedly installed in containing recess 10.

[0024] The utility model in usage, first chain plate 2 and second chain plate 7 are connected through connecting pin shaft 1 rotationally connected and constitute die forging chain between head and tail, and first chain plate 2 and second chain plate 7 on die forging chain are alternately distributed, and lubricating oil is injected into lubricating oil cavity 17 inside through lubricating oil nozzle, and lubricating oil soaks into sponge block 18 inside, and lubricating oil seeps out through oil outlet hole 15, enters the inside of first through -hole 4 and second through -hole 9, to play the function of lubrication to the contact surface between first chain plate 2, second chain plate 7 and connecting pin shaft 1, reduce the wear and tear of die forging chain rotationally connected part, prolong the service life of die forging chain.

[0025] Example two

[0026] As Figure 1 , Figure 2 and Figure 4As shown, the utility model provides a kind of wear-resistant die forging chain, compared to embodiment one, this embodiment further include the first chain plate 2 inner side close to the position of two first through pin hole 4 It is uniformly provided with first circular step 5, second chain plate 7 outer surface both sides close to the position of two second through pin hole 9 It is uniformly provided with second circular step 8, and first circular step 5 and second circular step 8 contact, first circular step 5 and second circular step 8 outer surface movable sleeve joint has outer sealing ring 6, outer sealing ring 6 to the junction of first circular step 5 and second circular step 8 Play the role of sealing, the first chain plate 2 outer side close to the position of two first through pin hole 4 It is uniformly provided with annular groove 3, the inner diameter of annular groove 3 is greater than first through pin hole 4, annular groove 3 inside is provided with internal sealing ring 14, and internal sealing ring 14 movable sleeve joint is in the outer surface of connecting pin shaft 1.

[0027] In the embodiment, the lubricating oil penetrates into the contact surface of the first circular step 5 and the second circular step 8 to play a lubricating role. The external sealing ring 6 seals the first circular step 5 and the second circular step 8 by sleeving them to prevent the lubricating oil from leaking out. The internal sealing ring 14 in the annular groove 3 seals the gap between the first through pin hole 4 and the connecting pin shaft 1 to prevent the lubricating oil from leaking out. Therefore, the lubricating oil loss can be saved, and the cost can be reduced.

[0028] The above specific embodiments are only several preferred embodiments of the utility model. Based on the technical scheme of the utility model and the related inspiration of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A wear-resistant forged chain, comprising a connecting pin (1), a first chain plate (2), and a second chain plate (7), characterized in that: The first chain plate (2) has a first through pin hole (4) near both ends on its outer surface, and the second chain plate (7) has a second through pin hole (9) near both ends on its outer surface. The connecting pin (1) passes through the first through pin hole (4) and the second through pin hole (9). The connecting pin (1) has a lubricating oil cavity (17) inside. The connecting pin (1) has a plurality of oil outlet holes (15) evenly distributed on its outer surface. The connecting pin (1) has a receiving groove (10) at one end, and an oil injection nozzle (11) is fixedly installed inside the receiving groove (10).

2. The wear-resistant forged chain according to claim 1, characterized in that: A sponge block (18) is provided inside the lubricating oil cavity (17).

3. The wear-resistant forged chain according to claim 1, characterized in that: The connecting pin (1) has an annular groove (12) near both ends on its outer surface, and a retaining spring (16) is provided inside the annular groove (12).

4. The wear-resistant forged chain according to claim 3, characterized in that: The connecting pin (1) has a retaining ring (13) movably sleeved on its outer surface near the two annular slots (12), and the retaining ring (13) is located between the retaining spring (16) and the first chain plate (2).

5. The wear-resistant forged chain according to claim 1, characterized in that: The first chain plate (2) has a first circular step (5) on its inner side near the two first through pin holes (4), and the second chain plate (7) has a second circular step (8) on both sides of its outer surface near the two second through pin holes (9). The first circular step (5) and the second circular step (8) are in contact, and an external sealing ring (6) is movably sleeved on the outer surface of the first circular step (5) and the second circular step (8).

6. The wear-resistant forged chain according to claim 1, characterized in that: An annular groove (3) is provided on the outer side of the first chain plate (2) near the two first through pin holes (4). An internal sealing ring (14) is provided inside the annular groove (3), and the internal sealing ring (14) is movably sleeved on the outer surface of the connecting pin (1).

Images