Oil seal structure between big tripod and big tripod gear of knitting machine

Abstract

The utility model provides an oil seal structure between a big tripod and a big tripod gear of a knitting machine, which comprises the big tripod and the big tripod gear, an outer ring wall extending upwards is arranged on the outer periphery of the big tripod, a gear groove filled with lubricating oil is arranged on the inner side of the outer ring wall of the big tripod, and an annular reinforcing rib is arranged on the inner side of the gear groove. The outer periphery of the large tripod gear extends downwards to form an L-shaped bent portion, the bottom face of the large tripod gear extends downwards to form an annular boss, the boss is located on the inner side of the bent portion, the reinforcing rib is provided with an annular groove, and when the bent portion is matched in the gear groove, the boss is located in the annular groove. The boss is embedded into the groove to prevent lubricating oil from flowing into the knitting machine, pollution of the lubricating oil to the internal structure of equipment is reduced, short circuit in the equipment is avoided, the service life of the equipment is prolonged, and maintenance cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of knitting machine technology, and specifically relates to an oil seal structure between the knitting machine's main shaft and its gear. Background Technology

[0002] In knitting machines, the knitting machine auger and auger gear, as core transmission components, endure high-speed, high-load operation for extended periods. Their surfaces are prone to wear, which affects transmission efficiency and shortens service life. Therefore, lubricating oil is required between the auger and auger gear. The specific structure is as follows: Figure 1-2 As shown, the L-shaped bend 21 on the outer periphery of the large cauldron gear 2 fits into the gear groove 12 of the large cauldron 1. The gear groove of the large cauldron is filled with lubricating oil for lubrication, which can reduce the wear between the large cauldron and the large cauldron gear, reduce frictional resistance, improve transmission efficiency, and also has the functions of heat dissipation, cooling and rust prevention.

[0003] When moving a knitting machine, the entire machine will shake and tilt, causing the gears in the large cauldron to wobble relative to it. Figure 1-2 As shown, since the bottom surface of the large cauldron gear 2 and the reinforcing rib 13 on the top surface of the large cauldron 1 are in a clearance fit, if the large cauldron gear 2 shakes relative to the large cauldron 1, the gap between the bottom surface of the large cauldron gear 2 and the reinforcing rib 13 of the large cauldron will increase. The lubricating oil in the gear groove 12 can easily flow through this gap into the barrel mounting hole 14 in the middle of the large cauldron, and then into the knitting machine. Besides the overall shaking of the equipment, after prolonged use, the lubricating oil can also easily splash upwards and flow into the equipment through the gap between the large cauldron gear and the large cauldron. The lubricating oil flowing into the equipment will contaminate the internal structure of the knitting machine and may also cause short circuits and damage to the internal circuitry, increasing maintenance costs. Utility Model Content

[0004] The purpose of this utility model is to provide an oil seal structure between the cauldron and the cauldron gear of a knitting machine, wherein a boss and groove are provided between the cauldron and the cauldron gear to reduce the flow of lubricating oil into the equipment.

[0005] To achieve the above objectives, the solution of this utility model is as follows: an oil seal structure between a knitting machine's main cauldron and a main cauldron gear, comprising a main cauldron and a main cauldron gear. The main cauldron has an upwardly extending outer ring wall on its outer periphery. The main cauldron has a gear groove containing lubricating oil on the inner side of the outer ring wall. The inner side of the gear groove has an annular reinforcing rib. The outer periphery of the main cauldron gear extends downward to form an L-shaped bend. The bottom surface of the main cauldron gear has an annular boss extending downward. The boss is located on the inner side of the bend. The reinforcing rib has an annular groove. When the bend is engaged in the gear groove, the boss is embedded in the groove to prevent lubricating oil from flowing into the knitting machine.

[0006] Further, the outer peripheral wall of the reinforcing rib horizontally extends outwardly by a ring of the stopper, which is located above the lubricating oil.

[0007] Further, a gap is left between the surface of the boss and the groove surface of the groove.

[0008] Further, the boss is a rectangular boss structure in cross section, and the groove is a rectangular groove matched with the boss.

[0009] Further, the top surface of the large cauldron is provided with a plurality of annular reinforcing ribs, and a strip-shaped reinforcing rib is arranged radially to connect all the annular reinforcing ribs, a gear groove is formed between one annular reinforcing rib closest to the outer ring wall of the large cauldron and the outer ring wall, and a groove and a stopper are arranged on the reinforcing rib.

[0010] Further, the middle part of the large cauldron is provided with an inner ring wall extending upward and downward, the inner part of the inner ring wall is provided with a cannon barrel mounting hole, and three annular reinforcing ribs are arranged between the inner ring wall and the outer ring wall.

[0011] Further, the middle part of the large cauldron gear is provided with a center column, the inner part of the center column is provided with a center hole, and the center hole is located above the cannon barrel mounting hole.

[0012] Further, the outer periphery of the center column is provided with a plurality of fan-shaped through grooves, and a raised strip for reinforcement is arranged between adjacent through grooves.

[0013] Further, the outer periphery of the large cauldron is provided with a mounting table in communication with the gear groove, the mounting table is provided with a main shaft hole for mounting a main shaft and a driving gear, and the driving gear is engaged with the large cauldron gear.

[0014] After the above scheme is adopted, the beneficial effects of the present application are as follows:

[0015] The large cauldron gear is provided with a ring of bosses extending downward on the inner side of the bending part, and a groove matched with the boss is arranged on the reinforcing rib of the large cauldron. After the large cauldron and the large cauldron gear are assembled, the bending part of the large cauldron gear will be matched in the gear groove, at the same time, the boss will be embedded in the groove to form a structure similar to a labyrinth seal. Even if the whole knitting machine equipment shakes and tilts, the boss will not be separated from the groove. The cooperation of the boss and the groove can prevent the lubricating oil in the gear groove from penetrating into the cannon barrel mounting hole in the middle part of the large cauldron, reduce the pollution of the internal structure of the equipment by the lubricating oil, avoid the short circuit of the internal circuit of the equipment, improve the service life of the equipment, and reduce the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a sectional view of the cooperation of the existing large cauldron and large cauldron gear;

[0017] Figure 2 It is a sectional view of the cooperation of the existing large cauldron and large cauldron gear; Figure 1 It is a local enlarged view of the middle A.

[0018] Figure 3 This is a cross-sectional view of the large tripod and the gear of the tripod according to this utility model;

[0019] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0020] Figure 5 This is a cross-sectional view of the large tripod of this utility model;

[0021] Figure 6 for Figure 5 Enlarged view of a section at point C;

[0022] Figure 7 This is a top view of the large tripod of this utility model;

[0023] Figure 8 This is a cross-sectional view of the large tripod gear of this utility model;

[0024] Figure 9 This is a top view of the large tripod gear of this utility model.

[0025] Label Explanation:

[0026] 1. Large tripod; 11. Outer ring wall; 12. Gear groove; 13. Reinforcing rib; 131. Groove; 132. Edge retaining rim; 14. Cannon barrel mounting hole; 15. Inner ring wall; 16. Mounting platform; 161. Main shaft hole; 2. Large tripod gear; 21. Bend; 22. Boss; 23. Central column; 24. Central hole; 25. Through groove; 26. Raised strip. Detailed Implementation

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figures 3-9The utility model provides a kind of oil seal structure between big Ding and big Ding gear of knitting machine, including big Ding 1, big Ding gear 2, the outer periphery of big Ding 1 is equipped with a upwards extending outer ring wall 11, the inside of outer ring wall 11 of big Ding 1 is equipped with gear groove 12 filled with lubricating oil, the outer periphery of big Ding gear 2 downwards extends and forms L-shaped bending part 21, the bending part 21 is fitted in gear groove 12, lubricating oil is filled in gear groove 12 to reduce the wear of big Ding 1 and big Ding gear 2.The top surface of big Ding 1 is equipped with annular reinforcing rib 13 in the inside of gear groove 12, the bottom surface of big Ding gear 2 is equipped with a annular boss 22 downwards, the boss 22 is located in the inside of bending part 21, and the position corresponding to boss 22 on reinforcing rib 13 of big Ding 1 is equipped with a annular groove 131.After big Ding 1 and big Ding gear 2 are assembled, bending part 21 will be fitted in gear groove 12, at the same time, boss 22 will be embedded in groove 131 and form a kind of similar labyrinth seal structure, the penetration path of lubricating oil can be extended by the stepped matching surface of boss 22 and groove 131, so as to block and seal lubricating oil, can effectively reduce the lubricating oil from the gap between big Ding gear 2 and reinforcing rib 13 into knitting machine equipment inside;Even if knitting machine equipment is overall shaken and tilted, boss 22 will not be separated from groove 131, and the cooperation structure of boss 22 and groove 131 can effectively reduce the penetration of lubricating oil in gear groove 12 into barrel mounting hole 14 in the middle of big Ding 1, avoid lubricating oil to pollute the internal structure of equipment, and cause the short circuit of circuit inside equipment, improve the service life of equipment, reduce maintenance cost.

[0029] With reference to Figure 4 The outer peripheral side wall of the reinforcing rib 13 extends outwardly and horizontally by a ring of retaining edge 132, the retaining edge 132 is in the gear groove 12 and is located above the lubricating oil, which can block the lubricating oil from splashing upwardly or flowing upwardly, and further block the penetration of the lubricating oil into the knitting machine equipment.

[0030] It should be noted that, since the big Ding gear 2 will rotate relative to the big Ding 1, a gap is required between the surface of the boss 22 and the groove surface of the groove 131 to avoid damage caused by friction between the big Ding gear 2 and the big Ding 1.

[0031] Further, the boss 22 is a convex block structure with a rectangular, triangular or other shape cross section, preferably a rectangular convex block structure, and the groove 131 is a rectangular groove matched with the boss 22 to form a stepped blocking structure, and the oil seal effect is better.

[0032] With reference to Figure 7The top surface of the large cauldron 1 is provided with a plurality of annular reinforcing ribs 13, and a strip-shaped reinforcing rib is arranged in the radial direction to connect all the annular reinforcing ribs 13. The plurality of reinforcing ribs 13 can uniformly reinforce the strength of the large cauldron 1, thereby improving the overall operation stability of the equipment. Among them, one annular reinforcing rib 13 closest to the outer ring wall 11 of the large cauldron 1 and the outer ring wall 11 form a gear groove 12, and a groove 131 and a stop edge 132 are arranged on the reinforcing rib 13.

[0033] With reference to the drawings Figures 5-7 The middle part of the large cauldron 1 is provided with an inner ring wall 15 extending upward and downward, the inside of the inner ring wall 15 is provided with a barrel mounting hole 14 for assembly, and three annular reinforcing ribs 13 are arranged between the inner ring wall 15 and the outer ring wall 11. In addition, the outer periphery of the large cauldron 1 is also provided with a mounting table 16 communicating with the gear groove 12, the mounting table 16 is provided with a main shaft hole 161, the main shaft hole 161 is used for installing a main shaft and a driving gear (not shown in the figure), the driving gear is engaged with the large cauldron gear 2, the main wheel is connected with the driving device of the knitting machine, and the driving device drives the driving gear to rotate, thereby driving the large cauldron gear 2 to rotate.

[0034] With reference to the drawings Figures 8-9 The middle part of the large cauldron gear 2 is provided with a center column 23, the inside of the center column 23 is provided with a center hole 24 for assembly, and the center hole 24 is located above the mounting hole to align with the large cauldron 1. The outer periphery of the center column 23 is provided with a plurality of fan-shaped through grooves 25, and a protruding strip 26 for reinforcement is arranged between adjacent through grooves 25. The protruding strip 26 has the same effect as the reinforcing rib 13, which can increase the strength of the large cauldron gear 2, so as to improve the operation stability of the large cauldron gear 2.

[0035] The above is only a preferred embodiment of the present application, and is not a limitation on the design of the present application. Any equivalent changes made on the basis of the key design of the present application shall fall within the scope of protection of the present application.

Claims

1. An oil seal structure between a large pot of a knitting machine and a large pot gear, characterized by: The application relates to a large cauldron and a large cauldron gear, wherein the outer periphery of the large cauldron is provided with an upwardly extending outer ring wall, the inner side of the outer ring wall is provided with a gear groove filled with lubricating oil, and the inner side of the gear groove is provided with an annular reinforcing rib; the outer periphery of the large cauldron gear is downwardly extended to form an L-shaped bending part, the bottom surface of the large cauldron gear is downwardly extended to be provided with an annular boss, the boss is located on the inner side of the bending part, the reinforcing rib is provided with an annular groove, and when the bending part is matched in the gear groove, the boss is embedded in the groove to block the lubricating oil from flowing into the interior of the knitting machine.

2. The oil seal structure between the large cam and the large cam gear of a knitting machine according to claim 1, characterized in that: The outer peripheral wall of the reinforcing rib is outwardly horizontally extended to be provided with a ring-shaped baffle, and the baffle is located above the lubricating oil.

3. An oil seal structure between a large cam and a large cam gear of a knitting machine according to claim 1 or 2, characterized in that: A gap is left between the surface of the boss and the groove surface of the groove.

4. The oil seal structure between the large cam and the large cam gear of a knitting machine according to claim 3, characterized in that: The boss is a rectangular boss structure in section, and the groove is a rectangular groove matched with the boss.

5. The oil seal structure between the large cam and the large cam gear of a knitting machine according to claim 2, characterized in that: The top surface of the large cauldron is provided with a plurality of annular reinforcing ribs, and a strip-shaped reinforcing rib is arranged in the radial direction to connect all the annular reinforcing ribs; one annular reinforcing rib closest to the outer ring wall of the large cauldron and the outer ring wall form the gear groove, and the groove and the baffle are arranged on the reinforcing rib.

6. An oil seal structure between a large cam and a large cam gear of a knitting machine according to claim 5, characterized in that: The middle part of the large cauldron is provided with an inner ring wall extending upwardly and downwardly, the inner part of the inner ring wall is provided with a barrel mounting hole, and the inner ring wall and the outer ring wall are provided with three annular reinforcing ribs.

7. An oil seal structure between a large cam and a large cam gear of a knitting machine according to claim 6, characterized in that: The middle part of the large cauldron gear is provided with a center column, the inner part of the center column is provided with a center hole, and the center hole is located above the barrel mounting hole.

8. The oil seal structure between the large cam and the large cam gear of a knitting machine according to claim 7, characterized in that: The outer periphery of the center column is provided with a plurality of fan-shaped through grooves, and the adjacent through grooves are provided with a raised strip for reinforcement.

9. The oil seal structure between the large cam and the large cam gear of a knitting machine according to claim 1, characterized in that: The outer periphery of the large cauldron is provided with a mounting table communicated with the gear groove, the mounting table is provided with a main shaft hole, the main shaft hole is used for mounting a main shaft and a driving gear, the driving gear is engaged with the large cauldron gear.

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