Fixing device for steel belt rope wheel

Abstract

The utility model relates to the technical field of household elevator accessories, in particular to a steel belt rope wheel fixing device which comprises an upper beam frame, the upper beam frame comprises U-shaped steel plates, U-shaped groove bottom plates are welded and fixed to the two sides of the U-shaped steel plates, the U-shaped steel plates are oppositely arranged, and two rope returning wheel sets are arranged between the U-shaped steel plate groove bottom plates on the two sides of the upper beam frame. Each rope returning wheel set comprises an assembling shaft rod and a rope returning wheel connected to the assembling shaft rod in a sleeving mode, the length of the assembling shaft rod is equal to the distance between bottom plates of the two U-shaped steel plate grooves, and the two ends of the assembling shaft rod are assembled and fixed to the U-shaped steel plates on the corresponding sides through fixing and installing mechanisms on the two sides respectively. The fixing and mounting mechanism comprises flange plates and fixing plates, the flange plates are fixedly arranged at the ends of the assembling shaft rod in a sleeving mode, when the rope returning wheel set is mounted between the two U-shaped steel plate groove bottom plates, the flange plates are fixed to the two ends of the assembling shaft rod respectively, and after the flange plate and the fixing plate on each side are clamped to the two sides of the U-shaped steel plate groove bottom plate on the corresponding side respectively, the flange plate, the fixing plate and the U-shaped steel plate groove bottom plate are fixedly assembled through bolts. The device is convenient to install, high in applicability and simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing accessories of a home elevator car return rope pulley, in particular to a fixing device for a steel belt rope pulley. Background Art

[0002] Home elevators are limited to single-family use, and are mainly divided into traction elevators, screw elevators and hydraulic elevators. Among them, the traction home elevator is the most common elevator structure, which uses a top-mounted traction machine with a counterweight to drive the car up and down, and the connection mechanism between the steel belt on the traction machine and the elevator car upper beam device is the steel belt return pulley, and the steel belt pulley fixing device is used to connect the steel belt pulley to the elevator upper beam device.

[0003] After the traditional upper beam frame is welded, the car steel belt return rope pulley is matched and fixed with a special wheel axle clamp. When the rope pulley shaft is larger than the upper beam distance, the return rope pulley cannot be installed. At the same time, the elevator steel belt will be elongated with long-term use, and the traditional steel belt rope pulley fixing device cannot correct the stability of the steel belt. Utility Model Content

[0004] The technical problem to be solved by the utility model is: after the welding of the upper beam frame is completed, a fixing device for a steel belt rope pulley is provided which is convenient to install the return rope pulley of the car and has a stable structure.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a fixing device for a steel belt pulley, including an upper beam frame, the upper beam frame includes U-shaped steel plates with U-shaped groove bottom plates welded and fixed on both sides, and two return rope pulley groups are arranged between the U-shaped steel plate groove bottom plates on both sides, each of the return rope pulley groups includes an assembly shaft rod and a return rope pulley sleeved on the assembly shaft rod, the length of the assembly shaft rod and the spacing between the two U-shaped steel plate groove bottom plates are equal, the two ends of the assembly shaft rod are respectively assembled and fixed to the corresponding side U-shaped steel plates through fixed installation mechanisms on both sides, the fixed installation mechanism includes a flange plate and a fixed plate fixedly sleeved on the end of the assembly shaft rod, the flange plate and the fixed plate are respectively located on both sides of the U-shaped steel plate groove bottom plate, the fixed plate, the U-shaped steel plate groove bottom plate and the flange plate are fixed and assembled by bolts.

[0006] In certain embodiments, the flange plate is welded to the end of the assembly shaft rod, and the fixing plate, the U-shaped steel plate groove bottom plate and the end of the assembly shaft rod are fixedly assembled by bolts.

[0007] In some embodiments, the return rope pulley of each return rope pulley assembly includes a first return rope pulley and a second return rope pulley sleeved on the assembly shaft.

[0008] In certain embodiments, a first lateral elastic tensioning mechanism and a second lateral elastic tensioning mechanism are installed on the two U-shaped steel plates or the assembly shaft.

[0009] In some embodiments, the first lateral elastic tensioning mechanism and the second lateral elastic tensioning mechanism both include a lateral adjustment sleeve rotatably sleeved on the assembly shaft, a lateral extrusion arm fixed on the outer side of the lateral adjustment sleeve, and a lateral stabilizing sleeve fixed on the outer end of the lateral extrusion arm.

[0010] In certain embodiments, an elastic device is provided between the lateral adjustment sleeve and the assembly shaft to act on the lateral extrusion arm to press the steel belt.

[0011] In certain embodiments, an annular assembly groove for mounting a lateral adjustment sleeve is formed on the assembly shaft.

[0012] In certain embodiments, a pressure sensor is installed between the assembly shaft and the lateral adjustment sleeve and is triggered when the lateral adjustment sleeve is rotated at an angle.

[0013] The beneficial effects of the utility model are:

[0014] (1) When the length of the assembly shaft is longer than the installation spacing between the two U-shaped steel plate groove bottom plates of the upper beam frame, the shaft length can be cut to be equal to the installation spacing, and flange plates are fixed at both ends of the assembly shaft. The flange plate and the fixing plate on each side are clamped on both sides of the U-shaped steel plate groove bottom plate on the corresponding side, and the three are fixed and assembled by bolts. This device is easy to install, has strong applicability and simple structure;

[0015] (2) Assemble the shaft end, the corresponding side U-shaped steel plate groove bottom plate and the fixing plate, and fix the three together with bolts to make the structure more stable and safer to use;

[0016] (3) A first lateral elastic tensioning mechanism and a second lateral elastic tensioning mechanism are respectively installed on an assembly shaft corresponding to two steel belts, and the lateral stabilizing sleeves thereof are pressed on the corresponding steel belts. Firstly, the instability caused by the inconsistent lengths of the two steel belts due to artificial installation can be adjusted. Secondly, the tension of the steel belts can be adjusted as the steel belts are stretched over a long period of time.

[0017] (4) A pressure sensor is installed between the assembly shaft and the lateral adjustment sleeve. The pressure sensor is triggered by turning to a set limit angle to determine the possible length of the steel belt, which is used to facilitate maintenance personnel to determine whether the steel belt is safe to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1It is a schematic diagram of the structure of the utility model from top view;

[0020] Figure 2 It is a schematic diagram of the structural assembly of the return rope pulley group in the utility model;

[0021] Figure 3 It is a schematic diagram of the bolt structure of the fixing plate in the utility model. DETAILED DESCRIPTION

[0022] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] As attached Figure 1 -Attached Figure 3 A fixing device for a steel belt rope pulley is shown.

[0025] The upper beam frame 1 includes a U-shaped steel plate 2 with U-shaped groove bottom plates welded and fixed on both sides, and two return rope pulley groups 3 are arranged between the groove bottom plates of the U-shaped steel plates 2 on both sides of the upper beam frame 1. Each return rope pulley group 3 includes an assembly shaft 31, a first return rope pulley 32 and a second return rope pulley 33 connected to the assembly shaft 31. The first return rope pulley 32 and the second return rope pulley 33 on the same side are respectively passed around the corresponding steel belts.

[0026] The two ends of the assembly shaft 31 are respectively assembled and fixed on the corresponding side U-shaped steel plate 2 through the two side fixing and mounting mechanisms 5 .

[0027] For the convenience of installation, strong applicability, simple structure, and stable structure after installation and fixation, the length of the assembly shaft 31 is set to be equal to the spacing between the two U-shaped steel plate 2 groove bottom plates. Each fixed installation mechanism 5 includes a flange plate 51 that is sleeved and welded to the two ends of the outer side of the assembly shaft 31, and also includes a fixing plate 52. The flange plate 51 and the fixing plate 52 are respectively located on both sides of the U-shaped steel plate 2 groove bottom plate, and the fixing plate 52, the U-shaped steel plate 2 groove bottom plate and the flange plate 51 are fixed and assembled by bolts. The fixing plate 52, the U-shaped steel plate 2 groove bottom plate and the end of the assembly shaft 31 are also fixed and assembled by bolts.

[0028] For the steel belts wound around the first return pulley 32 and the second return pulley 33, the assembly shaft 31 is also equipped with a first lateral elastic tensioning mechanism 34 and a second lateral elastic tensioning mechanism 35. The first lateral elastic tensioning mechanism 34 and the second lateral elastic tensioning mechanism 35 both include a lateral adjustment sleeve 451 rotatably sleeved in the annular assembly groove 36 on the assembly shaft 31, a lateral extrusion arm 452 fixed on the outer side of the lateral adjustment sleeve 451, and a lateral stabilizing sleeve 453 fixed on the outer end of the lateral extrusion arm 452. A torsion spring is provided between the lateral adjustment sleeve 451 and the assembly shaft 31 to act on the lateral extrusion arm 452 to press on the steel belt. A pressure sensor is also provided between the assembly shaft 31 and the lateral adjustment sleeve 451 to be triggered when the lateral adjustment sleeve 451 rotates to a certain angle, such as 15°, and the pressure sensor is triggered by the protrusion on the lateral adjustment sleeve 451. The lateral stabilizing sleeve 453 is provided with an inner extrusion wheel on the contact surface with the steel strip, which can reduce the friction with the surface of the steel strip.

[0029] During installation, first set the length of the assembly shaft 31 to be equal to the spacing between the two U-shaped steel plates 2 groove bottom plates, install the first lateral elastic tensioning mechanism 34 and the second lateral elastic tensioning mechanism 35 on the assembly shaft 31 respectively, and then install the first return rope pulley 32 and the second return rope pulley 33 on both sides, and then weld and fix the two ends with the flange plate 51, put it between the groove bottom plates of the U-shaped steel plates 2 on both sides, set the fixing plate 52 on the other side of the groove bottom plate, and then lock and fix it with bolts. It is easy to install, has strong installation applicability, is safe to use, and has strong stability.

[0030] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A fixing device for a steel belt pulley, comprising an upper beam frame (1), characterized in that: The upper beam frame (1) comprises a U-shaped steel plate (2) with U-shaped groove bottom plates welded and fixed on both sides, and two return rope pulley groups (3) are arranged between the groove bottom plates of the U-shaped steel plate (2) on both sides. Each return rope pulley group (3) comprises an assembly shaft (31) and a return rope pulley sleeved on the assembly shaft (31). The length of the assembly shaft (31) and the spacing between the two groove bottom plates of the U-shaped steel plate (2) are equal. The two ends of the assembly shaft (31) are respectively assembled and fixed on the corresponding side U-shaped steel plate (2) through two side fixing and installation mechanisms (5). The fixing and installation mechanism (5) comprises a flange plate (51) fixedly sleeved on the end of the assembly shaft (31) and a fixing plate (52). The flange plate (51) and the fixing plate (52) are respectively located on both sides of the groove bottom plate of the U-shaped steel plate (2). The fixing plate (52), the groove bottom plate of the U-shaped steel plate (2) and the flange plate (51) are fixedly assembled by bolts.

2. A fixing device for a steel belt pulley according to claim 1, characterized in that: The flange plate (51) is welded to the end of the assembly shaft rod (31), and the fixing plate (52), the bottom plate of the groove of the U-shaped steel plate (2) and the end of the assembly shaft rod (31) are fixedly assembled by bolts.

3. The fixing device of a steel belt pulley according to claim 1 is characterized in that: The return rope wheel of each return rope wheel assembly (3) comprises a first return rope wheel (32) and a second return rope wheel (33) sleeved on the assembly shaft (31).

4. A fixing device for a steel belt pulley according to claim 3, characterized in that: A first lateral elastic tensioning mechanism (34) and a second lateral elastic tensioning mechanism (35) are installed on the two U-shaped steel plates (2) or the assembly shaft rod (31).

5. A fixing device for a steel belt pulley according to claim 4, characterized in that: The first lateral elastic tensioning mechanism (34) and the second lateral elastic tensioning mechanism (35) both comprise a lateral adjustment sleeve (451) rotatably sleeved on the assembly shaft (31), a lateral extrusion arm (452) fixed on the outer side of the lateral adjustment sleeve (451), and a lateral stabilizing sleeve (453) fixed on the outer end of the lateral extrusion arm (452).

6. A fixing device for a steel belt pulley according to claim 5, characterized in that: An elastic device is provided between the lateral adjustment sleeve (451) and the assembly shaft (31) to act on the lateral pressing arm (452) to press on the steel belt.

7. The fixing device of a steel belt rope pulley according to claim 5, characterized in that: The assembly shaft (31) is provided with an annular assembly groove (36) for mounting a lateral adjustment sleeve (451).

8. The fixing device of a steel belt pulley according to claim 5, characterized in that: A pressure sensor is installed between the assembly shaft (31) and the lateral adjustment sleeve (451), and is triggered when the lateral adjustment sleeve (451) is rotated by an angle.

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