Detachable self-lubricating chain type gear

Abstract

The utility model provides a detachable self-lubricating chained gear, and belongs to the technical field of gear transmission. The chain type gear solves the problems that an existing chain type gear is insufficient in lubrication, single in model and limited in transmission operation. The detachable self-lubricating chain type gear comprises a gear shaft sleeve and a gear spoke piece. The gear shaft sleeve is integrally formed by a first-stage shaft sleeve and a second-stage shaft sleeve, a circle of oil storage groove is annularly formed in a radial plate of the second-stage shaft sleeve, a plurality of oil outlet cavities are evenly formed in the radial plate in the circumferential direction from the interior of the oil storage groove to the outer side wall of the outer edge of the second-stage shaft sleeve in a radial mode, and oil outlet holes are formed in end openings of the oil outlet cavities. A sealing gasket is clamped and mounted at a groove opening of the oil storage groove; the number of the gear spoke pieces is two, and the gear spoke pieces are detachably installed on the two sides of the second-stage shaft sleeve through bolt connection. The self-lubricating gear has the advantages that gear abrasion is reduced through self-lubricating, the service life of the gear is prolonged, gear spoke pieces with different tooth numbers can be detached and replaced according to actual needs, the transmission ratio is flexibly adjusted, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gear drive technical field, and particularly relates to a detachable self-lubricating chain gear. BACKGROUND

[0002] ‌Chain gear is a kind of mechanical transmission parts, compared with ordinary gear, the biggest difference of chain gear is that the meshing between gear is replaced by the meshing of sprocket and chain, which makes chain gear transmission not be limited by the number of meshing points, and is suitable for long-distance transmission.

[0003] But chain gear still has the following problems in the running process: one, insufficient lubrication during transmission, which leads to serious gear wear, short service life and the need to add lubricating oil frequently;Two, chain gear is usually a single specification type gear designed in an integrated manner, with fixed gear teeth, so that the transmission ratio and transmission efficiency have limitations and cannot be adjusted according to actual needs. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above problems existing in prior art, and provides a detachable self-lubricating chain gear.

[0005] The utility model discloses a detachable self-lubricating chain gear, which comprises a gear shaft sleeve and a gear spoke.

[0006] The gear shaft sleeve is formed by one-stage sleeve and two-stage sleeve in an integrated manner, a ring-shaped oil storage groove is formed around the one-stage sleeve outer edge on the sleeve spoke of the two-stage sleeve, a plurality of oil outlet cavities are evenly formed in the spoke inside from the oil storage groove to the outer side wall outside the two-stage sleeve outer edge in a radial pattern, and an oil outlet hole is formed in the two-stage sleeve outer edge outer side wall at the oil outlet cavity port.

[0007] The number of gear spokes is two, which are respectively installed on both sides of the two-stage sleeve, a plurality of spoke bolt holes corresponding to the sleeve bolt holes are evenly formed in the gear spokes in a circumferential direction, and a plurality of fixing bolts pass through the spoke bolt holes and the sleeve bolt holes, so that the gear shaft sleeve and the gear spoke are fixedly connected.

[0008] In the above detachable self-lubricating chain gear, a ring-shaped oil guide groove is formed around the outer edge outer side wall of the two-stage sleeve, and the oil guide groove is connected in series with the plurality of oil outlet holes on the outer side wall.

[0009] In the aforementioned detachable self-lubricating chain gear, a primary sealing groove and a secondary sealing groove are respectively provided on the primary bushing and the secondary bushing on both sides of the groove opening of the oil reservoir. The two ends of the sealing gasket are respectively inserted into the primary sealing groove and the secondary sealing groove, thereby securing the sealing gasket at the groove opening of the oil reservoir to achieve a seal on the oil reservoir.

[0010] In the aforementioned detachable self-lubricating chain gear, a through shaft fixing hole is provided on the side wall of the primary bushing, and a shaft fixing pin is fitted inside the hole.

[0011] In the aforementioned detachable self-lubricating chain gear, the root circle size of the outer edge teeth of the gear spokes should be equal to or similar to the outer edge diameter of the secondary bushing, and should not be smaller than the outer edge diameter of the secondary bushing.

[0012] Compared with the prior art, the detachable self-lubricating chain gear provided by this utility model has the following advantages: First, by adding lubricating oil in the oil storage tank, when the gear rotates, the lubricating oil can seep out from the oil outlet chamber to the oil outlet hole under the action of centrifugal force to perform self-lubrication, thereby reducing gear wear, extending its service life, and reducing the frequency of adding lubricating oil, thus freeing up manpower.

[0013] Second, by splitting the gear into two parts, the gear bushing and the gear spokes, the chain gear can be disassembled and replaced with gear spokes of different numbers of teeth according to the actual needs of transmission, thereby flexibly adjusting the transmission ratio and transmission efficiency, making it highly practical. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this detachable self-lubricating chain gear;

[0015] Figure 2 This is an exploded view and a partial enlarged view of the structure of this detachable self-lubricating chain gear;

[0016] Figure 3 This is a cross-sectional view and a partial enlarged view of the detachable self-lubricating chain gear.

[0017] Figure 4 This is a longitudinal structural cross-sectional view of the detachable self-lubricating chain gear.

[0018] In the above figure, 100 is the gear bushing; 110 is the primary bushing; 111 is the primary sealing groove; 112 is the shaft fixing hole; 113 is the shaft fixing pin; 120 is the secondary bushing; 121 is the secondary sealing groove; 122 is the oil reservoir; 123 is the oil outlet chamber; 124 is the oil outlet hole; 125 is the oil guide groove; 126 is the bushing bolt hole; 130 is the sealing washer; 200 is the gear spoke; 210 is the spoke bolt hole; and 220 is the fixing bolt. DETAILED DESCRIPTION

[0019] The utility model discloses the specific embodiment of the utility model below and the further description of the technical scheme of the utility model is made in combination with the drawings, but the utility model is not limited to these embodiments.

[0020] As Figures 1 to 4 The detachable self-lubricating chain gear shown in the figure, including gear shaft sleeve 100 and gear spoke 200, gear shaft sleeve 100 is formed by the integration of primary sleeve 110 and secondary sleeve 120, the two ends of primary sleeve 110 are respectively protruding from secondary sleeve 120, the outer diameter of secondary sleeve 120 is greater than primary sleeve 110, the number of gear spoke 200 is two, which are installed on the two sides of secondary sleeve 120 and set on primary sleeve 110.

[0021] As Figures 2 to 4 The secondary sleeve 120 of gear shaft sleeve 100 is provided with a ring-shaped oil storage groove 122 around the outer edge of primary sleeve 110 on the side sleeve spoke plate of the longer end of primary sleeve 110, and the oil storage groove 122 is used for adding and storing a certain amount of lubricating oil. A plurality of oil outlet cavities 123 are evenly arranged in the radial plate inside the secondary sleeve 120 between the inner groove wall of the oil storage groove 122 and the outer side wall of the outer edge of the secondary sleeve 120, and the cavity diameter of the oil outlet cavity 123 is smaller than the groove diameter of the oil storage groove 122, so that the lubricating oil in the oil storage groove 122 can slowly seep out through the oil outlet cavity 123, and a certain amount of lubricating oil can be ensured to be used for meshing transmission lubrication and avoid excessive waste. The oil outlet hole 124 is formed on the outer edge of the outer side wall of the secondary sleeve 120 at the port of the oil outlet cavity 123, and a ring-shaped oil guide groove 125 is arranged on the outer edge of the outer side wall of the secondary sleeve 120. The oil guide groove 125 connects the plurality of oil outlet holes 124 on the outer side wall in series, and the oil guide groove 125 can guide the lubricating oil seepage path, so as to ensure the circumferential lubrication of the gear and avoid affecting the fixed connection structure in the axial direction.

[0022] The oil storage groove 122 is provided with a primary sealing groove 111 and a secondary sealing groove 121 on the primary sleeve 110 and the secondary sleeve 120 respectively on both sides of the groove opening, and the sealing gasket 130 is connected and installed between the primary sealing groove 111 and the secondary sealing groove 121. The two ends of the sealing gasket 130 are respectively clamped into the primary sealing groove 111 and the secondary sealing groove 121, so as to clamp and install the sealing gasket 130 at the groove opening of the oil storage groove 122, realize the sealing of the oil storage groove 122, and avoid the leakage of the internal lubricating oil.

[0023] As Figure 2As shown, the second shaft sleeve 120 of the gear shaft sleeve 100 is provided with a plurality of through shaft sleeve bolt holes 126 on the radially extending plate and in the circumferential direction, which are staggered with the oil outlet cavity 123, and the gear radially extending plate 200 is provided with a plurality of radially extending plate bolt holes 210 in the circumferential direction, the shaft sleeve bolt holes 126 correspond to the radially extending plate bolt holes 210, and a plurality of fixing bolts 220 pass through the radially extending plate bolt holes 210 and the shaft sleeve bolt holes 126, so as to fix the gear shaft sleeve 100 and the gear radially extending plate 200. By dividing the chain gear into two parts of the gear shaft sleeve 100 and the gear radially extending plate 200, the chain gear can be disassembled and replaced with different gear radially extending plates 200 according to the actual needs of transmission, so as to flexibly adjust the transmission ratio and transmission efficiency, and the practicality is high.

[0024] Further, in the chain gear transmission process, the tooth root of the gear tooth is the most serious wear part. In the utility model, the size of the tooth root circle of the gear tooth at the outer edge of the gear radially extending plate 200 is equal to or close to the size of the outer edge diameter of the second shaft sleeve 120, and is not less than the outer edge diameter of the second shaft sleeve 120, so that the lubricating oil can infiltrate the tooth root of the gear radially extending plate 200 from the outer edge of the second shaft sleeve 120, thereby realizing the lubrication effect of the gear tooth.

[0025] Further, the shaft fixing hole 112 is provided in the shaft sleeve side wall of the first shaft sleeve 110 of the gear shaft sleeve 100, the shaft fixing pin 113 is mounted in the shaft fixing hole 112, and when the rotating shaft passes through the central shaft hole of the gear shaft sleeve 100, the relative fixation between the chain gear and the rotating shaft can be enhanced by rotating and fastening the shaft fixing pin 113.

[0026] The working principle of the utility model is as follows: a certain amount of lubricating oil is added in the oil storage groove 122, then the oil storage groove 122 is sealed by the sealing washer 130, and then the gear radially extending plates 200 on both sides are installed and clamped and fixed by being connected by the bolts; when the chain gear rotates and operates, the lubricating oil can seep out through the oil outlet cavity 123 to the oil outlet hole 124 under the action of centrifugal force, and then the lubricating oil can be self-lubricated in the circumferential direction of the whole gear through the oil guide groove 125, thereby reducing the wear of the gear, prolonging the service life of the gear, reducing the frequency of adding lubricating oil, liberating manpower, and improving the production and processing efficiency.

[0027] The specific embodiments described in the present application are only illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

[0028] Although various terms are used herein, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the present application; any interpretation of them as any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A detachable self-lubricating chain sprocket comprising a sprocket boss (100) and a sprocket web (200); characterized in that, The gear shaft sleeve (100) is formed by one-piece shaft sleeve (110) and secondary shaft sleeve (120), the secondary shaft sleeve (120) is provided with a ring-shaped oil storage groove (122) around the outer edge of the primary shaft sleeve (110) on the shaft sleeve web, a plurality of oil outlet cavities (123) are evenly provided in the web inside circumferentially from the inside of the oil storage groove (122) to the outer side wall of the outer edge of the secondary shaft sleeve (120), and the oil outlet holes (124) are formed on the outer side wall of the outer edge of the secondary shaft sleeve (120) at the ports of the oil outlet cavities (123); the sealing gasket (130) is connected and installed at the groove opening of the oil storage groove (122), and a plurality of through shaft sleeve bolt holes (126) are evenly provided on the web of the secondary shaft sleeve (120) and staggered with the oil outlet cavities (123) circumferentially. The number of the gear webs (200) is two, which are installed on both sides of the secondary shaft sleeve (120), a plurality of web bolt holes (210) corresponding to the shaft sleeve bolt holes (126) are evenly provided on the gear webs (200) circumferentially, and the gear shaft sleeve (100) and the gear webs (200) are fixedly connected by the plurality of fixing bolts (220) penetrating the web bolt holes (210) and the shaft sleeve bolt holes (126).

2. A detachable self-lubricating chain sprocket according to claim 1, characterized in that, The outer side wall of the outer edge of the secondary shaft sleeve (120) is circumferentially provided with a ring-shaped oil guide groove (125), and the oil guide groove (125) connects the plurality of oil outlet holes (124) on the outer side wall in series.

3. The detachable self-lubricating chain sprocket according to claim 1, wherein The primary sealing clamping grooves (111) and the secondary sealing clamping grooves (121) are respectively provided on the primary shaft sleeve (110) and the secondary shaft sleeve (120) at both sides of the groove opening of the oil storage groove (122), and the both ends of the sealing gasket (130) are respectively clamped into the primary sealing clamping grooves (111) and the secondary sealing clamping grooves (121), so that the sealing gasket (130) is connected and installed at the groove opening of the oil storage groove (122) to seal the oil storage groove (122).

4. The detachable self-lubricating chain sprocket according to claim 1, wherein The shaft fixing hole (112) is provided on the shaft sleeve side wall of the primary shaft sleeve (110) and is fitted with the shaft fixing pin (113) inside.

5. The detachable self-lubricating chain sprocket according to claim 1, wherein The size of the root circle of the gear teeth of the outer edge of the gear web (200) should be equal to or close to the size of the outer diameter of the secondary shaft sleeve (120), and cannot be smaller than the outer diameter of the secondary shaft sleeve (120).

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