Conveying chain with rollers convenient to disassemble

Abstract

The conveying chain comprises a pin shaft, a roller shaft sleeve, a plurality of bearings, a plurality of balls, a plurality of ball mounting holes, a limiting groove, a roller fixing ring and the roller, the pin shaft comprises a roller mounting section, and the roller shaft sleeve is arranged on the roller mounting section in a sleeving mode; ball mounting holes which are circumferentially formed at intervals are formed in the circumferential surface of the upper end of the roller shaft sleeve, balls are arranged in the ball mounting holes, limiting grooves for the balls to be clamped in are formed in the roller mounting section, a bearing is arranged on the roller shaft sleeve, a roller is arranged on the bearing, and the roller is arranged on the roller shaft sleeve. And the roller fixing ring is elastically and slidably arranged on the roller shaft sleeve and used for preventing the balls from rolling out of the outer ends of the ball mounting holes so that the balls can be clamped in the limiting grooves, and compared with the prior art, the use cost can be reduced, and use is convenient.

Description

[Technical field]

[0001] The invention relates to the technical field of conveyor chains, in particular to a conveyor chain with rollers that are easy to disassemble. [Background technology]

[0002] The roller conveyor chain is one of the important parts of the plate feeder, which plays the role of transmission and conveying. Generally, the roller of the conveyor chain is designed between the two inner chain plates, with a compact structure and reliable operation. The roller is in contact with the guide rail, and after running for a period of time, it will be worn and the roller needs to be replaced. In this structure, the roller replacement is very unchanged, so the entire conveyor chain can only be replaced, which increases the cost of use. [Summary of the invention]

[0003] The purpose of the present invention is to solve the problems in the prior art and to provide a conveyor chain with rollers that are easy to disassemble, which can reduce the use cost and is easy to use.

[0004] To achieve the above-mentioned purpose, the present invention proposes a conveyor chain with easy-to-remove rollers, comprising a pin shaft, a roller sleeve, a plurality of bearings, a plurality of balls, a plurality of ball mounting holes, a limiting groove, a roller fixing ring and a roller, the pin shaft comprising a roller mounting section, the roller mounting section being sleeved with a roller sleeve, the upper end circumferential surface of the roller sleeve being provided with ball mounting holes arranged at intervals in a circumferential shape, balls being arranged in each of the ball mounting holes, the roller mounting section being provided with a limiting groove for the balls to be inserted into, the roller sleeve being provided with a bearing, the bearing being provided with a roller, and the roller sleeve being elastically and slidably provided with a roller fixing ring for preventing the balls from rolling out from the outer end of the ball mounting hole so that the balls can be stuck in the limiting groove.

[0005] Preferably, an escape zone is provided at the upper end of the inner ring of the roller fixing ring, and the lower end of the escape zone is in a conical shape.

[0006] Preferably, an annular protrusion is provided on the roller sleeve, a spring and a roller fixing ring are sleeved on the roller sleeve at the upper end of the annular protrusion, and a spring is provided between the annular protrusion and the roller fixing ring.

[0007] Preferably, a blocking protrusion is provided on the outer peripheral surface of the lower end of the roller fixing ring, and a blocking step I for limiting the blocking protrusion is provided inside the upper end of the roller.

[0008] Preferably, an elastic retaining ring I is provided on the roller sleeve at the lower end of the annular protrusion, and a bearing 3 and a shaft spacer sleeve located between the two bearings are provided on the roller sleeve between the elastic retaining ring I and the annular protrusion, and the outer diameter of the shaft spacer sleeve is not greater than the outer diameter of the inner ring of the bearing.

[0009] Preferably, a blocking step II is provided inside the roller, and the blocking step II is used to limit the upper end of the outer ring of the upper bearing.

[0010] Preferably, an installation space is provided at the lower end of the inner ring of the roller, and a roller cover and an elastic retaining ring II for fixing the roller cover are provided in the installation space.

[0011] Preferably, the roller cover is provided with an oiling nozzle.

[0012] Preferably, the upper end of the roller mounting section is provided with a chain pin which is passed through the conveying chain body, the upper end of the chain pin is sleeved with a fixing sleeve with an interference fit, the lower end circumference of the chain pin is provided with an annular baffle, and a connecting frame is fixed to the chain plate of the conveying chain body by rivets.

[0013] Preferably, the limiting groove includes grooves corresponding to the ball mounting holes one by one, and two adjacent grooves are connected by a connecting groove.

[0014] Preferably, a disassembly wrench is further included, wherein the disassembly wrench includes a handle, a shift fork is provided on the handle, and both ends of the shift fork are provided with a head.

[0015] Beneficial effects of the present invention: The present invention sleeves a roller sleeve on a roller mounting section, the upper end circumference of the roller sleeve is provided with ball mounting holes arranged at intervals in a circumferential shape, balls are arranged in the ball mounting holes, the roller mounting section is provided with a limiting groove for the balls to be inserted, the roller sleeve is provided with a bearing, the bearing is provided with a roller, the roller sleeve is elastically slidably provided with a roller fixing ring for preventing the balls from rolling out from the outer end of the ball mounting hole so that the balls can be stuck in the limiting groove, the roller fixing ring is pushed into the roller, and then the roller is pulled out, and the roller sleeve can be removed from the roller mounting section. Compared with the prior art, the present invention can reduce the use cost and is convenient to use.

[0016] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0017] Figure 1 It is a structural schematic diagram of a conveyor chain of the present invention that is easy to disassemble rollers;

[0018] Figure 2 It is a partial cross-sectional view of a conveyor chain of the present invention that is easy to disassemble rollers;

[0019] Figure 3 It is a schematic diagram of the structure of the limit slot;

[0020] Figure 4 It is a structural diagram of a disassembly wrench.

[0021] In the figure: 1-pin shaft, 2-roller sleeve, 3-bearing, 4-ball, 5-ball mounting hole, 6-limiting groove, 7-roller fixing ring, 8-roller, 9-avoidance area, 10-annular protrusion, 11-spring, 12-blocking protrusion, 13-blocking step I, 14-elastic retaining ring I, 15-shaft spacer, 16-blocking step II, 17-installation space, 18-fixed roller cover, 19-elastic retaining ring II, 20-oiling nozzle, 21-conveyor chain body, 22-rivet, 23-connecting frame, 24-disassembly wrench, 61-groove, 62-connecting groove, 241-handle, 242-shift fork, 243-head, 101-roller mounting section, 102-chain pin, 103-fixing sleeve, 104-annular retaining body. [Specific implementation method]

[0022] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention provides a conveyor chain for easy removal of rollers, comprising a pin shaft 1, a roller sleeve 2, a plurality of bearings 3, a plurality of balls 4, a plurality of ball mounting holes 5, a limiting groove 6, a roller fixing ring 7 and a roller 8. The pin shaft 1 comprises a roller mounting section 101, on which a roller sleeve 2 is sleeved, the upper end circumference of the roller sleeve 2 is provided with ball mounting holes 5 arranged at intervals in a circumferential shape, and balls 4 are arranged in the ball mounting holes 5. The roller mounting section 101 is provided with limiting grooves 6 for the balls 4 to be inserted, the roller sleeve 2 is provided with bearings 3, and the bearings 3 are provided with rollers 8. The roller sleeve 2 is elastically and slidably provided with a roller fixing ring 7 for preventing the balls 4 from rolling out from the outer ends of the ball mounting holes 5 so that the balls 4 can be stuck in the limiting grooves 6.

[0023] An escape zone 9 is provided at the upper end of the inner ring of the roller fixing ring 7, and the lower end of the escape zone 9 is in a conical shape.

[0024] The roller sleeve 2 is provided with an annular protrusion 10 , and the roller sleeve 2 at the upper end of the annular protrusion 10 is sleeved with a spring 11 and a roller fixing ring 7 , and a spring 11 is provided between the annular protrusion 10 and the roller fixing ring 7 .

[0025] A blocking protrusion 12 is provided on the outer peripheral surface of the lower end of the roller fixing ring 7, and a blocking step I13 for limiting the blocking protrusion 12 is provided inside the upper end of the roller 8.

[0026] An elastic retaining ring I14 is provided on the roller sleeve 2 at the lower end of the annular protrusion 10, and a bearing 3 and a shaft spacer 15 located between the two bearings 3 are provided on the roller sleeve 2 between the elastic retaining ring I14 and the annular protrusion 10, and the outer diameter of the shaft spacer 15 is not greater than the outer diameter of the inner ring of the bearing 3.

[0027] The roller 8 is provided with a blocking step II16, and the blocking step II16 is used to limit the upper end of the outer ring of the bearing 3 above.

[0028] An installation space 17 is provided at the lower end of the inner ring of the roller 8 , and a roller cover 18 and an elastic retaining ring II19 for fixing the roller cover 18 are provided in the installation space 17 .

[0029] The roller cover 18 is provided with an oiling nozzle 20 .

[0030] The upper end of the roller mounting section 101 is provided with a chain pin 102 that passes through the conveying chain body 21, the upper end of the chain pin 102 is sleeved with a fixing sleeve 103 with an interference fit, the lower end circumference of the chain pin 102 is provided with an annular baffle 104, and a connecting frame 23 is fixed to the chain plate of the conveying chain body 21 by rivets 22.

[0031] The limiting groove 6 includes grooves 61 corresponding to the ball mounting holes 5 one by one, and two adjacent grooves 61 are connected through a connecting groove 62.

[0032] The disassembly wrench 24 is also included. The disassembly wrench 24 includes a handle 241 . A shift fork 242 is provided on the handle 241 . Both ends of the shift fork 242 are provided with a head 243 .

[0033] Working process of the present invention:

[0034] In the working process of the conveyor chain with easy roller removal of the present invention, when the removal wrench 24 is used for disassembly, the handle 241 is held to push the head 243 against the roller fixing ring 7, and then the roller fixing ring 7 is pushed downward with force to move into the roller 8. When the avoidance area 9 corresponds to the ball 4, the ball 4 rolls toward the avoidance area 9, so that the ball 8 can be separated from the groove 61, and then the roller sleeve 2 can be removed from the roller mounting section 101.

[0035] Roller assembly steps:

[0036] Clean the oil stains from each component, take out the roller sleeve 2, install the spring 11, the roller fixing ring 7 and the ball 4. The ball 4 can only be installed from the outer end of the ball mounting hole 5 and cannot be missed from the inner end of the ball mounting hole 5. Then install the roller sleeve 2 with the corresponding components installed in the roller 8, and install the bearing 3, the shaft spacer 15, the bearing 3, the elastic retaining ring I14, the roller cover 18, the elastic retaining ring II19, the oiling nozzle 20 and other components in turn to complete the assembly of the roller.

[0037] Press the roller fixing ring 7 by hand to facilitate the movement of the ball 4 from the ball mounting hole 5 to the outside, then install the roller sleeve 2 on the roller mounting section 101, release the pressed roller fixing ring 7, push the roller 8 until the ball 4 falls into the groove 61, and the roller fixing ring 7 automatically returns to its position under the action of the spring 11 to block the ball 4, thereby fixing the roller sleeve 2 on the roller mounting section 101 to achieve the installation of the roller.

[0038] A connecting frame (23) is fixed to the chain plate of the conveyor chain body (21) via rivets (22), thereby avoiding the phenomenon that the chain plate is deformed due to welding.

[0039] The upper end of the chain pin (102) is sleeved with a fixing sleeve (103) with an interference fit, and the interference fit is adopted to ensure the connection strength and reliability of the pin shaft 1.

[0040] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A conveyor chain with rollers that are easy to disassemble, characterized in that: The invention comprises a pin shaft (1), a roller sleeve (2), a plurality of bearings (3), a plurality of balls (4), a plurality of ball mounting holes (5), a limiting groove (6), a roller fixing ring (7) and a roller (8), wherein the pin shaft (1) comprises a roller mounting section (101), a roller sleeve (2) is sleeved on the roller mounting section (101), the upper end circumferential surface of the roller sleeve (2) is provided with ball mounting holes (5) arranged at intervals in a circumferential shape, and the ball A ball (4) is arranged in each mounting hole (5); a limiting groove (6) for the ball (4) to be inserted into is arranged on the roller mounting section (101); a bearing (3) is arranged on the roller sleeve (2); a roller (8) is arranged on the bearing (3); and a roller fixing ring (7) is elastically slidably arranged on the roller sleeve (2) for preventing the ball (4) from rolling out from the outer end of the ball mounting hole (5) so that the ball (4) can be inserted into the limiting groove (6).

2. A conveyor chain with easily removable rollers as claimed in claim 1, characterized in that: The upper end of the inner ring of the roller fixing ring (7) is provided with an escape zone (9), and the lower end of the escape zone (9) is in a conical shape.

3. A conveyor chain with easily removable rollers as claimed in claim 1, characterized in that: The roller sleeve (2) is provided with an annular protrusion (10), a spring (11) and a roller fixing ring (7) are sleeved on the roller sleeve (2) at the upper end of the annular protrusion (10), and a spring (11) is provided between the annular protrusion (10) and the roller fixing ring (7).

4. A conveyor chain with easily removable rollers as claimed in claim 3, characterized in that: The outer peripheral surface of the lower end of the roller fixing ring (7) is provided with a blocking protrusion (12), and the upper end of the roller (8) is provided with a blocking step I (13) for limiting the blocking protrusion (12).

5. A conveyor chain with easily removable rollers as claimed in claim 3, characterized in that: An elastic retaining ring I (14) is provided on the roller sleeve (2) at the lower end of the annular protrusion (10), and a bearing (3) and a shaft spacer (15) located between the two bearings (3) are provided on the roller sleeve (2) between the elastic retaining ring I (14) and the annular protrusion (10), wherein the outer diameter of the shaft spacer (15) is not greater than the outer diameter of the inner ring of the bearing (3).

6. A conveyor chain with easily removable rollers as claimed in claim 1, characterized in that: A blocking step II (16) is provided inside the roller (8), and the blocking step II (16) is used to limit the upper end of the outer ring of the upper bearing (3).

7. A conveyor chain with easily removable rollers as claimed in claim 1, characterized in that: The lower end of the inner ring of the roller (8) is provided with an installation space (17), a roller cover (18) and an elastic retaining ring II (19) for fixing the roller cover (18) are provided in the installation space (17), and an oiling nozzle (20) is provided on the roller cover (18).

8. A conveyor chain with easily removable rollers as claimed in claim 1, characterized in that: The upper end of the roller mounting section (101) is provided with a chain pin (102) which is inserted into the conveying chain body (21); the upper end of the chain pin (102) is sleeved with a fixing sleeve (103) which is connected by interference fit; the lower end circumference of the chain pin (102) is provided with an annular stopper (104); and a connecting frame (23) is fixed to the chain plate of the conveying chain body (21) by means of rivets (22).

9. A conveyor chain with easily removable rollers as claimed in claim 1, characterized in that: The limiting groove (6) comprises grooves (61) corresponding one to one with the ball mounting holes (5), and two adjacent grooves (61) are connected via a connecting groove (62).

10. A conveyor chain with easily removable rollers according to any one of claims 1 to 9, characterized in that: The invention also comprises a disassembly wrench (24), wherein the disassembly wrench (24) comprises a handle (241), a shift fork (242) is provided on the handle (241), and both ends of the shift fork (242) are provided with a head (243).

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