Construction hoist roller assembly and adjusting mechanism

Abstract

The utility model relates to a construction hoist roller assembly and an adjusting mechanism, and belongs to the technical field of building hoisting and transporting machinery. The eccentric shaft comprises a fastening standard component, mounting plates, an eccentric shaft, an eccentric shaft sleeve and a roller component, the mounting plates comprise a left mounting plate and a right mounting plate, threaded sections on two sides of the eccentric shaft are in threaded connection with the fastening standard component, and a left unthreaded section of the eccentric shaft is hinged to a mounting hole of the left mounting plate through a round hole. The right unthreaded section of the eccentric shaft is hinged with a circular hole of the eccentric shaft sleeve; and the eccentric shaft sleeve is hinged with the right mounting plate circular hole through clearance fit. The lifting cage is reasonable in structural design, stable, reliable and convenient to mount and dismount, ensures stable operation of the lifting cage, and meets use requirements.

Description

Technical Field

[0001] This utility model relates to a roller assembly and adjustment mechanism, and more particularly to a roller assembly and adjustment mechanism for a construction hoist, which belongs to the field of construction lifting and transportation machinery technology. Background Technology

[0002] Rollers are key components of construction hoists, guiding the cage and drive unit as they move up and down along the guide rail frame riser. Due to manufacturing errors in the steel structures such as the cage, drive unit, and guide rail frame sections, precision cannot be guaranteed to be 100%. Therefore, the rollers have an eccentric adjustment function to adjust the gap H between the rollers and the guide rail frame riser during use, ensuring smooth and stable operation of the cage. Below is a diagram showing the installation relationship between the rollers and the guide rail frame section (partial view). Figure 1 As shown, it includes positive pressure roller A, back pressure roller B, side pressure roller C, and guide rail frame section riser D.

[0003] Taking a side-pressure roller as an example: Currently on the market, it generally consists of standard bolt fastening parts 1-1, eccentric shaft 2-1, sealing ring 3-1, roller 4-1, bearing 5-1, retaining ring 6-1, and end cap 7-1, etc. Figure 2 As shown.

[0004] The installation method is to install it on the ear plate 8-1 of the cage column by thread connection. The ear plate 8-1 of the cage column has a countersunk hole feature. The left end of the eccentric shaft is recessed and installed, that is, countersunk hole installation 9-1. The eccentric shaft is attached to the ear plate 8-1 of the column by the wrench position 10-1, and the eccentric shaft is fixed by tightening the left nut.

[0005] The overall roller structure is a cantilever type with one end fixed and the other end free. The gap between the roller and the riser is mainly adjusted by turning the eccentric shaft with a wrench. Figure 3 As shown.

[0006] The above-mentioned roller assembly and adjustment mechanism have the following main defects: 1) The eccentric shaft is complicated to manufacture. Since the eccentric shaft needs to be adjusted eccentrically, and the wrench of this type of eccentric shaft structure is located in the middle, the diameter of the raw material is required to meet the processing conditions (the largest diameter is required). At the same time, the precision machining process is relatively complex and cumbersome; 2) The mounting lugs of the rollers need to be designed and manufactured with countersunk holes, which makes the overall processing and manufacturing process of the cage and drive frame complicated; 3) The roller assembly has a cantilever structure, which is subjected to force on one side and has slightly insufficient stability, making it easy for the roller mounting nuts to loosen; 4) Since the cantilever end is exposed, special sealing measures are required, such as installing sealing ring 3-1 and end cap 7-1, which is slightly cumbersome to install. Utility Model Content

[0007] The purpose of this utility model is to overcome the above-mentioned deficiencies in the existing technology and to provide a construction hoist roller assembly and adjustment mechanism with reasonable structural design, stability and reliability, convenient installation and disassembly, and ensuring smooth operation of the hoist cage.

[0008] The technical solution adopted by this utility model to solve the above problems is as follows: the roller assembly and adjustment mechanism of the construction hoist includes a fastening standard part and a mounting plate. The mounting plate includes a left mounting plate and a right mounting plate. The feature is that it also includes an eccentric shaft and an eccentric bushing. The threaded sections on both sides of the eccentric shaft are threadedly connected to the fastening standard part. The unthreaded section on the left side of the eccentric shaft is hinged to the mounting hole of the left mounting plate through a round hole. The unthreaded section on the right side of the eccentric shaft is hinged to the round hole of the eccentric bushing. The eccentric bushing is hinged to the round hole of the right mounting plate through a clearance fit.

[0009] Preferably, the present invention also includes spacers on both sides of the roller assembly, a spacer sleeve is fitted between the eccentric shaft and the right mounting plate, and another spacer sleeve is fitted between the eccentric shaft and the roller assembly.

[0010] Preferably, the right mounting hole of the right mounting plate of the present invention is larger than the left mounting hole of the left mounting plate; ensuring that the maximum diameter of the eccentric shaft can pass through the mounting hole.

[0011] Preferably, the fastening standard component of this utility model includes a nut and a washer that fit together.

[0012] Preferably, the roller assembly of this invention includes a roller, a bearing, and a retaining ring that cooperate with each other.

[0013] Compared with the prior art, this utility model has the following advantages and effects: the overall structure is reasonably designed, stable and reliable, easy to install and disassemble, and the eccentric shaft and eccentric bushing are easy to process. At the same time, the installation method is a two-end support structure, which distributes the force at both ends of the roller, thereby ensuring the stability of the roller structure, ensuring the smooth operation of the cage, and reducing the impact of loose connecting nuts. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the installation relationship between the roller and the guide rail section (partial) in the prior art.

[0015] Figure 2 This is a schematic diagram of the structure of a side-pressure roller in the prior art.

[0016] Figure 3 This is a schematic diagram of the existing technology where a wrench is used to adjust the gap between the roller and the riser when the eccentric shaft is turned.

[0017] Figure 4 This is a schematic diagram of the overall structure of the roller assembly and adjustment mechanism according to an embodiment of the present utility model.

[0018] Figure 5 This is a schematic diagram of the eccentric shaft in the roller assembly and adjustment mechanism of this utility model embodiment.

[0019] Figure 6 This is a schematic diagram of the eccentric bushing in the roller assembly and adjustment mechanism of this utility model embodiment.

[0020] Figure 1 In the middle: positive pressure roller A, back pressure roller B, side pressure roller C, guide rail frame section riser D, and the gap H between the roller and the guide rail frame section riser;

[0021] Figures 2-3 In the middle: standard bolt fastener 1-1, eccentric shaft 2-1, sealing ring 3-1, roller 4-1, bearing 5-1, retaining ring 6-1, end cover 7-1, ear plate 8-1, countersunk hole installation 9-1, wrench position 10-1;

[0022] Figures 4-6 In the middle: Fastening standard part 1, eccentric shaft 2, spacer 3, roller 4, bearing 5, eccentric shaft sleeve 6, mounting plate 7, left mounting plate 7-1, right mounting plate 7-2, roller assembly Z, wrench position 8. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0024] Example.

[0025] See Figures 4 to 6 In this embodiment, the construction hoist roller assembly and adjustment mechanism include a fastening standard part 1, an eccentric shaft 2, an eccentric shaft sleeve 6, a mounting plate 7, and a roller assembly Z. The mounting plate 7 includes a left mounting plate 7-1 and a right mounting plate 7-2. The threaded sections on both sides of the eccentric shaft 2 are threadedly connected to the fastening standard part 1.

[0026] In this embodiment, the unthreaded section on the left side of the eccentric shaft 2 is hinged to the mounting hole of the left mounting plate 7-1 through a round hole, and the unthreaded section on the right side of the eccentric shaft 2 is hinged to the round hole of the eccentric bushing 6; the eccentric bushing 6 is hinged to the round hole of the right mounting plate 7-2 through clearance fit.

[0027] In this embodiment, a spacer 3 is fitted between the eccentric shaft 2 and the right mounting plate 7-2, and another spacer 3 is fitted between the eccentric shaft 2 and the roller assembly Z.

[0028] In this embodiment, the roller assembly Z includes a roller 4, a bearing 5, and a retaining ring that cooperate with each other, and is regarded as a whole.

[0029] In this embodiment, the fastening standard component 1 includes a nut that fits into each other and one of a washer or a spring washer.

[0030] In this embodiment, the roller assembly has mounting plates 7 at both ends, and the installation method is a two-end support structure. The mounting holes of the mounting plates 7 at both ends are different in size. The right mounting hole of the right mounting plate 7-2 is larger than the left mounting hole of the left mounting plate 7-1. The purpose is to ensure that the maximum diameter of the eccentric shaft 2 can pass through the mounting hole.

[0031] In this embodiment, the eccentric shaft 2 has threaded rods at both ends. The threaded rods at both ends ensure concentricity on the same axis. The ends of the threaded rods are provided with internal hexagonal holes or external polygonal shapes (see...). Figure 5 To facilitate wrench adjustment of wrench position 8 for eccentricity; during installation, the eccentric shaft 2 is inserted from the right mounting plate 7-2, the spacer 3 is fitted, the roller assembly Z is fitted again with the spacer 3, and then the fastening standard part 1 is installed on the left end through the mounting hole of the left mounting plate 7-1, and the eccentric shaft sleeve 6 (e.g.) is installed on the right mounting plate 7-2. Figure 6 As shown), the concentricity of the threaded rods at both ends of the eccentric shaft 2 is ensured by adjustment; finally, the fastening standard part 1 is installed on the right side.

[0032] In this embodiment, spacers 3 are installed on both sides of the roller assembly Z on the eccentric shaft 2 to ensure the movement clearance of the roller assembly.

[0033] In this embodiment, the spacer 3 is fitted into the eccentric shaft 2 with a clearance fit and a movable connection; the roller assembly Z is fitted into the eccentric shaft 2 with a clearance fit and a movable connection.

[0034] In this embodiment, the eccentric shaft 2 and eccentric bushing 6 of the roller assembly and adjustment mechanism are easy to process. At the same time, the installation method is a two-end support structure, which distributes the force at both ends of the roller, thereby ensuring the stability of the roller structure, ensuring the smooth operation of the cage, and reducing the impact of loose connecting nuts.

[0035] Based on the above description, those skilled in the art are already able to implement it.

[0036] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, all of which should fall within the protection scope of this utility model.

Claims

1. A construction hoist roller assembly and adjusting mechanism, comprising a fastening standard part (1) and a mounting plate (7), the mounting plate (7) comprising a left mounting plate (7-1) and a right mounting plate (7-2), characterized in that: It also includes eccentric shaft (2) and eccentric sleeve (6), the eccentric shaft (2) both sides of the threaded segment with fastening standard parts (1) threaded connection, the eccentric shaft (2) left side of the non-threaded segment with the left side of the mounting plate (7-1) mounting hole through the round hole hinge, the eccentric shaft (2) right side of the non-threaded segment with the eccentric sleeve (6) round hole hinge; eccentric sleeve (6) and the right side of the mounting plate (7-2) round hole hinge, through the clearance fit.

2. The construction elevator sheave assembly and adjustment mechanism of claim 1, wherein: It also includes the spacer (3) of the roller assembly (Z) both sides, the eccentric shaft (2) and the right side of the mounting plate (7-2) set a spacer (3), the eccentric shaft (2) and the roller assembly (Z) again set another spacer (3).

3. The construction elevator sheave assembly and adjustment mechanism of claim 1, wherein: The right side of the mounting hole of the right side of the mounting plate (7-2) is larger than the left side of the mounting hole of the left side of the mounting plate (7-1).

4. The construction elevator sheave assembly and adjustment mechanism of claim 1, wherein: The fastening standard part (1) includes nut and washer matched with each other.

5. The construction elevator sheave assembly and adjustment mechanism of claim 2, wherein: The roller assembly (Z) includes roller (4), bearing (5) and retainer ring matched with each other.

Images