Sliding bearing oil-proof sealing structure in flying shear shank

Abstract

The utility model discloses a sliding bearing oil-proof sealing structure in a flying shear shank, which relates to the technical field of bearing sealing, and comprises a cutter rest, a sliding bearing, a crankshaft, a shaft sleeve, an oil seal pressing plate, an oil seal and a sealing assembly, a shaft sleeve is arranged between the lubricating bearing and the tool rest, an oil seal and an oil seal pressing plate are arranged at one end of the tool rest, the oil seal abuts against the lubricating bearing, the shaft sleeve and the tool rest, the oil seal pressing plate is connected with the tool rest and abuts against the oil seal, and a sealing assembly is arranged at the other end of the tool rest. Through the arrangement of the shaft sleeve, the oil seal pressing plate, the oil seal and the sealing assembly, sealing of the two ends of the sliding bearing can be achieved, lubricating oil of the sliding bearing in the tool rest is located in a closed cavity, loss of the lubricating oil is greatly reduced, the service life of the sliding bearing is prolonged, and many convenience and economic benefits can be brought to enterprises in practical application.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing seal technical field, especially fly shears in a sliding bearing oil seal structure of tool rest. BACKGROUND

[0002] Referring to Figure 1 The existing fly shears in a sliding bearing lubricating structure includes tool rest 100, sliding bearing 200, shaft end pressing plate 300, bolt 400, crank shaft 500 and countersunk head screw 600, and the tool rest 100 is provided with lubricating oil hole which is aligned with the lubricating oil hole of the sliding bearing 200. UTILITY MODEL CONTENTS

[0003] The utility model discloses a fly shears in a sliding bearing oil seal structure, which is used to solve the above technical problems.

[0004] The utility model discloses the technical scheme as follows:

[0005] A fly shears in a sliding bearing oil seal structure, which includes a tool rest, a sliding bearing and a crank shaft.

[0006] Preferably, the structure further includes a small shaft, one end of the small shaft passes through the sealing assembly and is connected with the crank shaft, an oil inlet hole on the small shaft is in communication with an oil hole in the crank shaft, and the oil hole of the crank shaft is opposite to the oil hole of the sliding bearing.

[0007] Preferably, the crank shaft and the sliding bearing are both provided with key grooves, and the crank shaft and the sliding bearing are connected through key matching.

[0008] Further preferably, the sealing assembly includes a copper sleeve and a shaft end pressing plate, the copper sleeve is arranged inside the other end of the tool rest, one end of the copper sleeve is opposite to the sliding bearing, the other end of the copper sleeve is provided with the shaft end pressing plate, and the shaft end pressing plate is connected with the crank shaft.

[0009] As a further preferred, a cover is further included, the other end of the tool holder is provided with the cover, and the small shaft penetrates through the cover.

[0010] As a further preferred, a felt ring is further included, and the felt ring is arranged between the small shaft and the cover.

[0011] As a further preferred, a bolt and a washer are further included, the cover is connected with the tool holder through the bolt, and the washer is arranged between the bolt and the cover.

[0012] As a further preferred, a through hole is arranged on the cover, a mounting groove is arranged on the inner wall of the through hole, and the felt ring is arranged in the mounting groove.

[0013] The above technical scheme has the following advantages or beneficial effects:

[0014] In the utility model, through the setting of the shaft sleeve, the oil seal pressing plate, the oil seal and the sealing assembly, the sealing of the two ends of the sliding bearing can be realized, the lubricating oil of the sliding bearing in the tool holder is in a closed cavity, the loss of the lubricating oil is greatly reduced, the service life of the sliding bearing is improved, and in actual application, the utility model can bring many conveniences and economic benefits for enterprises. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the structural schematic view of the lubricating structure of the sliding bearing in the flying shear tool holder in the prior art;

[0016] Figure 2 is the structural schematic view of the oil-proof sealing structure of the sliding bearing in the flying shear tool holder in the utility model.

[0017] In the figure: 100, tool holder; 200, sliding bearing; 300, shaft end pressing plate; 400, bolt; 500, crank shaft; 600, countersunk screw; 1, tool holder; 2, sliding bearing; 3, crank shaft; 4, shaft sleeve; 5, oil seal pressing plate; 6, oil seal; 7, small shaft; 8, key groove; 9, copper sleeve; 10, shaft end pressing plate; 11, cover; 12, felt ring; 13, bolt; 14, washer; 15, first countersunk screw; 16, second countersunk screw; 17, third countersunk screw; 18, fourth countersunk screw. DETAILED DESCRIPTION

[0018] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings, and obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] In the description of the utility model, it needs to explain, if appearing the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on, the indicated direction or position relation of the drawing is based on the direction or position relation, only is for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the restriction to the utility model of the indicated device or element must have the specific direction, constructs and operates with the specific direction, therefore cannot be understood as the relative importance.

[0020] In the description of the utility model, it needs to explain, unless the explicit provision and limitation, if appearing the term "installation", "connection", "connect" should do the broad sense, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be the intercommunication of two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0021] Figure 2 It is the structure diagram of the sliding bearing oil-proof sealing structure in the flying shear tool rest in the utility model, please see Figure 2 Illustrated, show a kind of preferred embodiment, show a kind of sliding bearing oil-proof sealing structure in the flying shear tool rest, including tool rest 1, sliding bearing 2 and crank shaft 3, the inside of tool rest 1 is provided with sliding bearing 2, sliding bearing 2 is provided with crank shaft 3, further including shaft sleeve 4, oil seal pressing plate 5, oil seal 6 and sealing assembly, lubricating bearing is provided with shaft sleeve 4 between tool rest 1, one end of tool rest 1 is provided with oil seal 6 and oil seal pressing plate 5, oil seal 6 and lubricating bearing, shaft sleeve 4 and tool rest 1 are in abutment, oil seal pressing plate 5 is connected with tool rest 1 and is in abutment with oil seal 6, another end of tool rest 1 is provided with sealing assembly. In the embodiment, see Figure 2 Illustrated, through the setting of oil seal 6 and oil seal pressing plate 5, the one end of sliding bearing 2 can be sealed, and the sealing between sliding bearing 2, shaft sleeve 4 and tool rest 1 is realized. Through the setting of sealing assembly, the other end of sliding bearing 2 can be sealed, so that a closed cavity is formed between sliding bearing 2, tool rest 1, oil seal 6 and sealing assembly, lubricating oil can be prevented from flowing out from both ends of sliding bearing 2, the loss of lubricating oil can be greatly reduced, and the service life of sliding bearing 2 is improved.

[0022] In the embodiment, first countersunk screw 15 is further included, oil seal pressing plate 5 is connected with tool rest 1 by first countersunk screw 15, and oil seal pressing plate 5 is used to fix oil seal 6 in tool rest 1, see Figure 2 Illustrated.

[0023] Further, as a preferred embodiment, a small shaft 7 is further included, one end of the small shaft 7 penetrates the sealing assembly and is connected with the crank shaft 3, an oil inlet hole on the small shaft 7 is communicated with the oil hole in the crank shaft 3, and the oil hole in the crank shaft 3 is opposite to the oil hole in the sliding bearing 2. The middle part of the small shaft 7 is provided with an oil inlet hole, the oil inlet hole can be connected with an external oil inlet pipeline, the oil inlet hole of the small shaft 7 penetrates the small shaft 7 along the axial direction of the small shaft 7, and the small shaft 7 is connected with the crank shaft 3 through the second countersunk screw 16. The lubricating oil can enter into the small shaft 7, then enter into the oil hole of the crank shaft 3 through the oil inlet hole of the small shaft 7, and then enter into the oil hole of the sliding bearing 2, so that the sliding bearing 2 is fully lubricated.

[0024] Further, as a preferred embodiment, the crank shaft 3 and the sliding bearing 2 are both provided with key grooves 8, and the crank shaft 3 and the sliding bearing 2 are connected through key matching, so that the oil hole in the crank shaft 3 is consistent with the oil hole in the sliding bearing 2, the lubricating oil can flow into the sliding bearing 2 through the oil hole in the crank shaft 3, and then the sliding bearing 2 is fully lubricated.

[0025] Further, as a preferred embodiment, the sealing assembly includes a copper sleeve 9 and an axle end pressing plate 10, the copper sleeve 9 is arranged in the other end of the tool holder 1, one end of the copper sleeve 9 abuts against the sliding bearing 2, the other end of the copper sleeve 9 is provided with the axle end pressing plate 10, and the axle end pressing plate 10 is connected with the crank shaft 3. The other end of the tool holder 1 is provided with a cover 11, the small shaft 7 penetrates the cover 11, and a felt ring 12 is arranged between the small shaft 7 and the cover 11. Through the arrangement of the copper sleeve 9 and the axle end pressing plate 10, the sliding bearing 2 can be stably arranged on the crank shaft 3, and through the arrangement of the cover 11 and the felt ring 12, the other end of the sliding bearing 2 can be sealed, so that the lubricating oil can be sealed in the closed cavity, and the lubricating oil can be prevented from flowing out.

[0026] In the embodiment, as shown in Figure 2 , an oil storage cavity is formed between the outer wall of the sliding bearing 2 and the inner wall of the shaft sleeve 4, and the lubricating oil can enter into the oil storage cavity to lubricate the outer wall of the lubricating oil.

[0027] Further, as a preferred embodiment, a bolt 13 and a gasket 14 are further included, the cover 11 is connected with the tool holder 1 through the bolt 13, and the gasket 14 is arranged between the bolt 13 and the cover 11. The arrangement position of the gasket 14 can be seen from Figure 2 , through the arrangement of the bolt 13, the cover 11 and the tool holder 1 can be fixedly connected.

[0028] In this embodiment, a third countersunk screw 17 and a fourth countersunk screw 18 are also included. The shaft end pressure plate 10 is connected and fixed to the crankshaft 3 by the third countersunk screw 17. The shaft end pressure plate 10 abuts against the copper sleeve 9, thereby fixing the position of the copper sleeve 9. The bushing 4 is connected to the tool holder 1 by the fourth countersunk screw 18 to prevent the bushing 4 from rotating.

[0029] Furthermore, as a preferred embodiment, the end cap 11 has a through hole, and the inner wall of the through hole has a mounting groove, in which the felt ring 12 is disposed. The felt ring 12 ensures a seal between the end cap 11 and the small shaft 7, preventing lubricating oil from leaking out.

[0030] During assembly, first, accurately insert the key into the keyway 8 of the crankshaft 3. Then, align the keyway 8 of the sliding bearing 2 with the keyway 8 of the crankshaft 3. Next, smoothly slide the sliding bearing 2 onto the outside of the crankshaft 3 until it is fully installed. During this process, it is necessary to check whether the oil hole on the sliding bearing 2 is aligned with the oil hole on the crankshaft 3 to ensure that the sliding bearing 2 receives adequate lubrication.

[0031] Next, insert the small shaft 7 into the end of the crankshaft 3, and use the second countersunk screw 16 to firmly fix the small shaft 7 onto the crankshaft 3.

[0032] Then heat the bushing 4 to a suitable temperature so that it can be more easily installed into the tool holder 1. After the end face of the bushing 4 is fully in contact with the inner end face of the tool holder 1, drill a threaded hole at the mating point of the bushing 4 and the tool holder 1 so that the two can be firmly fixed together using the fourth countersunk screw 18.

[0033] Install the oil seal 6 inside one end of the tool holder 1, and then insert the oil seal pressure plate 5 from one end of the tool holder 1. Use the first countersunk screw 15 to fix the oil seal pressure plate 5 onto the tool holder 1. This step is to ensure that the oil seal 6 can work properly and effectively prevent lubricating oil leakage.

[0034] Next, install the tool holder 1, which is now assembled, onto the crankshaft 3.

[0035] Then, insert the copper bushing 9 along the crankshaft 3. Figure 2 As shown, during assembly, a gap of 0.2mm-0.24mm should be reserved between the bushing 4 and the copper sleeve 9. Insert the shaft end pressure plate 10 from the other end of the tool holder 1 and secure it to the crankshaft 3 using the third countersunk screw 17. First, insert the felt ring 12 into the mounting groove of the end cap 11, then insert the end cap 11 from the other end of the tool holder 1, and finally connect and secure the end cap 11 to the tool holder 1 using bolts 13.

[0036] The above merely describes preferred embodiments of the present application, and is not intended to limit the implementation and protection scope of the present application. For those skilled in the art, it should be understood that any equivalent substitutions and obvious changes made according to the content of the present application description and drawings should be included in the protection scope of the present application.

Claims

1. An oil-proof sealing structure for a sliding bearing in a flying scissor holder, comprising a scissor holder, a sliding bearing, and a crankshaft, wherein the sliding bearing is disposed inside the scissor holder, and the crankshaft is disposed inside the sliding bearing, characterized in that, It also includes a bushing, an oil seal pressure plate, an oil seal, and a sealing assembly. The bushing is provided between the lubricating bearing and the tool holder. The oil seal and the oil seal pressure plate are provided at one end of the tool holder. The oil seal abuts against the lubricating bearing, the bushing, and the tool holder. The oil seal pressure plate is connected to the tool holder and abuts against the oil seal. The sealing assembly is provided at the other end of the tool holder.

2. The sliding bearing oil-proof sealing structure in the flying scissor holder as described in claim 1, characterized in that, It also includes a small shaft, one end of which passes through the sealing assembly and is connected to the crankshaft. The oil inlet on the small shaft communicates with the oil hole inside the crankshaft, and the oil hole of the crankshaft is directly opposite the oil hole of the sliding bearing.

3. The sliding bearing oil-proof sealing structure in the flying scissor holder as described in claim 1, characterized in that, Both the crankshaft and the sliding bearing are provided with keyways, and the crankshaft and the sliding bearing are connected by a key.

4. The sliding bearing oil-proof sealing structure in the flying scissor holder as described in claim 2, characterized in that, The sealing assembly includes a copper sleeve and a shaft end pressure plate. The copper sleeve is located inside the other end of the tool holder. One end of the copper sleeve abuts against the sliding bearing, and the other end of the copper sleeve is provided with the shaft end pressure plate, which is connected to the crankshaft.

5. The sliding bearing oil-proof sealing structure in the flying scissor holder as described in claim 4, characterized in that, It also includes a cover, which is provided at the other end of the tool holder, and the small shaft passes through the cover.

6. The sliding bearing oil-proof sealing structure in the flying scissor holder as described in claim 5, characterized in that, It also includes a felt ring, which is disposed between the small shaft and the end cap.

7. The sliding bearing oil-proof sealing structure in the flying scissor holder as described in claim 5, characterized in that, It also includes bolts and washers, the end cap is connected to the tool holder by the bolts, and the washers are provided between the bolts and the end cap.

8. The sliding bearing oil-proof sealing structure in the flying scissor holder as described in claim 6, characterized in that, The cover has a through hole, and the inner wall of the through hole has a mounting groove, and the felt ring is placed in the mounting groove.

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