Double-guide-rail wear-resistant guide structure of long-service-life chain elevator

Abstract

The utility model discloses a long-life chain elevator double-guide-rail wear-resistant guide structure, which relates to the technical field of chain elevators, and comprises a rack and a lifting platform arranged in the rack, and further comprises a double-guide-rail assembly, a chain limiting assembly, a power assembly and a platform guide assembly. Due to the design of the double guide rails, the platform can be lifted from the two sides, the stress balance is improved, shaking and deviation of the chain in the running process are reduced, and the running stability of the chain is improved; the side, moving relative to the chain, of the guide rail of the equipment is provided with the rollers to be matched with friction of the chain to roll, sliding friction between the chain and the guide rail is converted into rolling friction, friction loss is greatly reduced, and the service life of the chain and the guide rail is prolonged; according to the equipment, the running track of the chain is limited through the chain fiber assembly, excessive shaking of the chain is avoided, and friction between the chain and the guide rail is reduced.

Description

Technical Field

[0001] This utility model relates to the field of chain elevator technology, specifically to a long-life chain elevator with a double-guide rail wear-resistant guiding structure. Background Technology

[0002] Chain elevators are widely used in the vertical lifting of materials in industrial production. During operation, the guiding structure plays a key role in the stable operation of the chain.

[0003] Traditional chain hoist guide structures typically use a single guide rail. During operation, the chain is prone to swaying and deviation, leading to increased wear between the chain and the guide rail and shortening their service life. Moreover, the wear resistance of traditional guide structures is limited. With increasing usage time, the guide rail surface wears severely, affecting the operating accuracy and reliability of the chain hoist. Utility Model Content

[0004] This invention provides a long-life chain hoist with a dual-rail wear-resistant guide structure, which has the advantages of dual rails and good wear resistance, thus solving the problems of easy chain swaying and poor wear resistance in existing single-rail hoists.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a long-life chain hoist with a double-guide rail wear-resistant guiding structure, comprising a frame and a hoisting platform disposed inside the frame, and further comprising a double-guide rail assembly, a chain limiting assembly, a power assembly, and a platform guiding assembly, wherein:

[0006] The bottom of the frame is fixed to the bottom surface by expansion bolts, and the top is provided with symmetrical through holes. The lifting platform is provided with a material conveyor belt.

[0007] The dual guide rail assembly includes guide rails, which are symmetrically fixed to both ends of the lifting platform by bolts. One side of the guide rail is provided with a backing plate, and the other side is provided with several rollers. A chain is provided between the backing plate and the guide rail, and the three are fixed together by bolts.

[0008] The chain limiting assembly includes several mounting holes symmetrically arranged on the inner side of the through hole. The mounting holes are fitted with mounting rods and are slidably engaged. The mounting rods are welded to one end of the limiting plate. Several elastic posts are fitted to the other end of the limiting plate and are slidably engaged. The elastic posts are fixed to the hanging plate.

[0009] As a preferred technical solution of this utility model, the limiting plate is provided on both sides of the chain, and the limiting plate is provided with a plurality of vertical grooves on the side of the chain. The vertical grooves are arranged parallel to the running direction of the chain, and one end of the elastic column is fitted into the mounting hole and slidably engaged.

[0010] As a preferred technical solution of this utility model, the roller is fitted with guide rails at both ends and rotates in cooperation, a hard alloy sheet is welded to the outer side of the roller, and one side of the roller is close to the chain.

[0011] As a preferred technical solution of this utility model, the power assembly includes motors obliquely and symmetrically arranged on the top of the frame. One end of the motor is connected to a motor gear, which meshes with one end of a chain. The other end of the chain meshes with a spur gear, which is welded to one end of a spur shaft. The other end of the spur shaft is provided with a chain gear.

[0012] As a preferred technical solution of this utility model, the straight shaft is fitted with a bearing in the middle and rotates, the chain gear meshes with both ends of the chain, wherein the lower chain gear is fixed to one end of the rotating rod, the rotating rod is fitted with a mounting frame and rotates, and the mounting frame is fixed to the bottom of the frame by bolts.

[0013] As a preferred technical solution of this utility model, guide columns are symmetrically welded on one side of the frame, and the platform guide assembly includes transverse guide wheels. The transverse guide wheels are symmetrically fitted into the guide groove and rotate in cooperation. The guide groove is welded to one end of the lifting platform.

[0014] As a preferred embodiment of this utility model, the transverse guide wheel abuts against one side of the guide column, the other side of the guide column abuts against the longitudinal guide wheel, the longitudinal guide wheel is nested on the fixed rod and rotates in cooperation, and the fixed rod is fixed to the lifting platform by bolts.

[0015] Compared with existing technologies, this utility model provides a long-life chain elevator with a double-guide rail wear-resistant guiding structure, which has the following beneficial effects: The double-guide rail design of this utility model can lift the platform from both sides, increase the force balance, reduce the shaking and deviation of the chain during operation, improve the stability of chain operation, and ensure the smoothness and safety of material lifting; the guide rail and the side of the chain that moves relative to each other are equipped with rollers to cooperate with the chain friction to roll, thereby transforming the sliding friction between the chain and the guide rail into rolling friction, which greatly reduces friction loss and extends the service life of the chain and the guide rail; the equipment limits the running trajectory of the chain through the chain fiber assembly, avoids excessive shaking of the chain, and reduces the friction between the chain and the guide rail. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a structural diagram of the frame of this utility model;

[0018] Figure 3 This is a schematic diagram of the dual-rail assembly structure of this utility model;

[0019] Figure 4 This is a structural diagram of the chain limiting component of this utility model;

[0020] Figure 5 This is a schematic diagram of the power component structure of this utility model;

[0021] Figure 6 This is a structural diagram of the platform guide component of this utility model.

[0022] In the diagram: 1. Frame; 2. Lifting platform; 3. Double guide rail assembly; 4. Chain limiting assembly; 5. Power assembly; 6. Platform guiding assembly; 11. Through hole; 12. Guide column; 21. Material conveyor belt; 31. Guide rail; 32. Backing plate; 33. Roller; 34. Chain; 41. Mounting hole; 42. Mounting rod; 43. Limiting plate; 44. Elastic column; 45. Hanging plate; 431. Vertical groove; 51. Motor; 52. Motor gear; 53. Connecting chain; 54. Straight shaft gear; 55. Straight shaft; 56. Chain gear; 57. Bearing; 58. Rotating rod; 59. Mounting frame; 61. Horizontal guide wheel; 62. Guide groove; 63. Longitudinal guide wheel; 64. Fixed rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0024] Please see Figures 1-6 This utility model discloses a long-life chain hoist double-guide rail wear-resistant guiding structure, including a frame 1 and a hoisting platform 2 disposed inside the frame 1, and also including a double-guide rail assembly 3, a chain limiting assembly 4, a power assembly 5, and a platform guiding assembly 6, wherein:

[0025] The bottom of the frame 1 is fixed to the bottom surface by expansion bolts, and the top is symmetrically provided with through holes 11. The lifting platform 2 is provided with a material conveyor belt 21.

[0026] Please refer to the appendix. Figure 3 The dual guide rail assembly 3 includes a guide rail 31, which is symmetrically fixed to both ends of the lifting platform 2 by bolts. One side of the guide rail 31 is provided with a backing plate 32, and the other side is provided with several rollers 33. A chain 34 is provided between the backing plate 32 and the guide rail 31, and the three are fixed together by bolts.

[0027] Please refer to the appendix. Figure 4The chain limiting component 4 includes several mounting holes 41, which are symmetrically arranged on the inner side of the through hole 11. The mounting holes 41 are fitted with mounting rods 42 and are slidably engaged. The mounting rods 42 are welded to one end of the limiting plate 43. The other end of the limiting plate 43 is fitted with several elastic posts 44 and is slidably engaged. The elastic posts 44 are fixed on the hanging plate 45. Specifically, one end of the limiting plate 43 is installed by inserting the mounting rods 42 into the mounting holes 41, and the other end is extended and retracted by compressing the springs on one side of the elastic posts 44 to achieve quick installation and disassembly, which is convenient for replacement at any time, ensuring accurate limiting of the chain 34 and avoiding excessive shaking that would cause wear on the guide rail 31.

[0028] The limiting plate 43 is provided on both sides of the chain. The limiting plate 43 has several vertical grooves 431 on the side of the chain. The vertical grooves 431 are arranged parallel to the running direction of the chain. One end of the elastic post 44 is fitted into the mounting hole 41 and slides. Specifically, the vertical grooves 431 can reduce the contact area between the chain 34 and the limiting plate 43, thereby limiting the chain 34 and reducing the frictional wear on the chain 34.

[0029] The roller 33 is fitted with the guide rail 31 at both ends and rotates in cooperation. A hard alloy sheet is welded to the outer side of the roller 33. One side of the roller 33 is close to the chain 34. Specifically, the hard alloy sheet has high hardness and high wear resistance, which can isolate the friction between the roller 33 and the chain 34 and greatly improve the service life of the guide rail 31.

[0030] In this embodiment, when the chain 34 rotates, the guide rail 31 on one side, which is fixed to the chain 34 via the back plate 32, moves up and down with the chain 34, thereby driving the lifting platform 2, which is locked to the guide rail 31, to move up and down, realizing the lifting motion of the material conveyor belt 21. The symmetrical arrangement of the two guide rails can lift the platform from both sides, increase the force balance, reduce the shaking and deviation of the chain during operation, improve the stability of the chain operation, and ensure the smoothness and safety of material lifting. Example 2

[0031] Based on the above embodiment 1, please refer to the appendix. Figure 2 , Figure 5 as well as Figure 6 The power assembly 5 includes a motor 51 that is obliquely and symmetrically arranged on the top of the frame 1. One end of the motor 51 is connected to a motor gear 52. The motor gear 52 meshes with one end of a connecting chain 53. The other end of the connecting chain 53 meshes with a straight shaft gear 54. The straight shaft gear 54 is welded to one end of a straight shaft 55. The other end of the straight shaft 55 is provided with a chain gear 56.

[0032] The straight shaft 55 is fitted with the bearing 57 in the middle and rotates. The chain gear 56 meshes with both ends of the chain 34. The lower chain gear 56 is fixed to one end of the rotating rod 58. The rotating rod 58 is fitted with the mounting bracket 59 and rotates. The mounting bracket 59 is fixed to the bottom of the frame 1 by bolts.

[0033] Guide columns 12 are symmetrically welded on one side of the frame 1. The platform guide assembly 6 includes a transverse guide wheel 61, which is symmetrically fitted into the guide groove 62 and rotates in cooperation. The guide groove 62 is welded to one end of the lifting platform 2.

[0034] The transverse guide wheel 61 abuts against one side of the guide column 12, and the other side of the guide column 12 abuts against the longitudinal guide wheel 63. The longitudinal guide wheel 63 is nested on the fixed rod 64 and rotates in cooperation. The fixed rod 64 is fixed to the lifting platform 2 by bolts. Specifically, the transverse guide wheel 61 makes the two ends of the lifting platform 2 abut against the guide column 12, which prevents it from swaying left and right and reduces friction damage by rotating in cooperation. The longitudinal guide wheel 63 prevents it from swaying back and forth, so that the lifting platform can be raised and lowered stably.

[0035] In this embodiment, the motor 51 drives the connecting chain 53 to rotate via the motor gear 52, which in turn drives the straight shaft gear 54 to rotate. The straight shaft 55 rotates on the bearing 57 under the drive of the straight shaft gear 54, which in turn drives the chain gear 56 at the other end to rotate, thereby driving the chain 34 to rotate and lifting the lifting platform 2. When the lifting platform 2 is lifting, it is precisely limited and guided in the horizontal direction by the horizontal guide wheel 61 and the vertical guide wheel 63, which greatly reduces the movement of the chain 34 caused by the shaking of the lifting platform 2, and further reduces the wear of the chain and the guide rail.

[0036] The working principle and usage process of this utility model: When using this equipment, first place the material on the material conveyor belt 21, then start the motor 51. The motor 51 drives the connecting chain 53 to rotate through the motor gear 52, which in turn drives the straight shaft gear 54 to rotate. The straight shaft 55 rotates on the bearing 57 under the drive of the straight shaft gear 54, which drives the chain gear 56 at the other end to rotate, thereby driving the chain 34 to rotate.

[0037] When the chain 34 rotates, the guide rail 31 fixed to the chain 34 moves up and down with the chain 34, thereby driving the lifting platform 2 locked to the guide rail 31 to move up and down, realizing the lifting motion of the material conveyor belt 21. When both motors 51 rotate clockwise at the same time, the lifting platform 2 rises; when the motors 51 rotate counterclockwise, the lifting platform 2 falls. The symmetrical arrangement of the double guide rails can lift the platform from both sides, increase the balance of force, reduce the swaying and deviation of the chain during operation, improve the stability of chain operation, and ensure the smoothness and safety of material lifting.

[0038] When the device is running, the side of the guide rail 31 that is not fixed to the chain 34 will be relatively displaced from the chain 34. When the platform is unstable or the equipment vibrates and the chain 34 shakes, the chain 34 may rub against the guide rail 31. At this time, the roller 33 will roll when it is subjected to friction, thereby changing the sliding friction between the chain 34 and the guide rail 31 into rolling friction, which greatly reduces friction loss and extends the service life of the chain 34 and the guide rail 31.

[0039] When the chain 34 passes through the through hole 11 at the top of the frame 1, the limiting plates 43 on both sides of the chain 34 limit the chain 34 to prevent the chain 34 from shaking too much and rubbing against the guide rail 31. The vertical groove 431 on the side of the limiting plate 43 near the chain 34 can reduce the contact area with it and reduce the frictional wear on the chain 34. At the same time, the limiting plate 43 can be inserted into the limiting plate 43 by pushing the hanging plate 45 to drive the elastic column 44 to compress the spring on one side. The limiting plate 43 can be removed by moving the elastic column 44 out of the mounting hole 41, which is convenient for timely replacement of the worn limiting plate 43 and ensures the accurate limiting of the chain 34.

[0040] When the lifting platform 2 is raised or lowered, it is precisely guided in the horizontal direction by the horizontal guide wheel 61 and the vertical guide wheel 63, which greatly reduces the movement of the chain 34 caused by the shaking of the lifting platform 2, and further reduces the wear of the chain and the guide rail.

Claims

1. A long-life chain hoist with a double-guide rail wear-resistant guide structure, comprising a frame (1) and a hoisting platform (2) disposed inside the frame (1), characterized in that, It also includes a dual guide rail assembly (3), a chain limiting assembly (4), a power assembly (5), and a platform guiding assembly (6), wherein: The bottom of the frame (1) is fixed to the bottom surface by expansion bolts, and the top is symmetrically provided with through holes (11). The lifting platform (2) is provided with a material conveyor belt (21). The dual guide rail assembly (3) includes a guide rail (31), which is symmetrically fixed to both ends of the lifting platform (2) by bolts. One side of the guide rail (31) is provided with a backing plate (32), and the other side is provided with several rollers (33). A chain (34) is provided between the backing plate (32) and the guide rail (31), and the three are fixed together by bolts. The chain limiting assembly (4) includes several mounting holes (41), which are symmetrically arranged on the inner side of the through hole (11). The mounting holes (41) are fitted with mounting rods (42) and are slidably engaged. The mounting rods (42) are welded to one end of the limiting plate (43), and several elastic columns (44) are fitted to the other end of the limiting plate (43) and are slidably engaged. The elastic columns (44) are fixed on the hanging plate (45).

2. The wear-resistant guide structure with double guide rails for a long-life chain hoist according to claim 1, characterized in that: The limiting plate (43) is provided on both sides of the chain. The limiting plate (43) has several vertical grooves (431) on the side of the chain. The vertical grooves (431) are arranged parallel to the running direction of the chain. One end of the elastic column (44) is fitted into the mounting hole (41) and slides.

3. The wear-resistant guide structure with double guide rails for a long-life chain hoist according to claim 2, characterized in that: The roller (33) is fitted with guide rails (31) at both ends and rotates in cooperation. Hard alloy sheets are welded to the outer side of the roller (33), and one side of the roller (33) is close to the chain (34).

4. The wear-resistant guide structure with double guide rails for a long-life chain elevator according to claim 1, characterized in that: The power assembly (5) includes a motor (51) obliquely symmetrically arranged on the top of the frame (1). One end of the motor (51) is connected to a motor gear (52). The motor gear (52) meshes with one end of a connecting chain (53). The other end of the connecting chain (53) meshes with a spur gear (54). The spur gear (54) is welded to one end of a spur shaft (55). The other end of the spur shaft (55) is provided with a chain gear (56).

5. The wear-resistant guide structure with double guide rails for a long-life chain hoist according to claim 4, characterized in that: The straight shaft (55) is fitted with a bearing (57) in the middle and rotates in cooperation with it. The chain gear (56) meshes with both ends of the chain (34). The chain gear (56) located at the bottom is fixed to one end of the rotating rod (58). The rotating rod (58) is fitted with a mounting bracket (59) and rotates in cooperation with it. The mounting bracket (59) is fixed to the bottom of the frame (1) by bolts.

6. The wear-resistant guide structure with double guide rails for a long-life chain hoist according to claim 1, characterized in that: The frame (1) has guide columns (12) symmetrically welded on one side. The platform guide assembly (6) includes a transverse guide wheel (61). The transverse guide wheel (61) is symmetrically fitted into the guide groove (62) and rotates in cooperation. The guide groove (62) is welded to one end of the lifting platform (2).

7. The wear-resistant guide structure with double guide rails for a long-life chain hoist according to claim 6, characterized in that: The transverse guide wheel (61) abuts against one side of the guide post (12), and the other side of the guide post (12) abuts against the longitudinal guide wheel (63). The longitudinal guide wheel (63) is nested on the fixed rod (64) and rotates in cooperation. The fixed rod (64) is fixed to the lifting platform (2) by bolts.

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