Elevator steel belt rope head combination

Abstract

The elevator steel belt rope head combination comprises a rope head pull rod and a wedge sleeve, the rope head pull rod is inserted into the upper portion of the wedge sleeve, and the rope head pull rod and the wedge sleeve are fixedly connected through a cylindrical pin. The wedge sleeve is formed by bending a metal plate in a right-angle mode, the metal plate is bent to form a first plane, a connecting face and a second plane, the connecting face is perpendicular to the first plane and the second plane, a reinforcing plate is further welded and fixed between the first plane and the second plane, and the reinforcing plate is perpendicular to the first plane and the second plane. And a wedge block is inserted in the middle of the wedge sleeve. The metal plate is bent to form the rope end wedge sleeve, the metal plate is formed by bending the right angle, the deformation resistance of the right angle is higher than that of an arc angle, the reinforcing plate is additionally arranged between the first plane and the second plane, and the reinforcing plate, the first plane and the second plane are doubly fixed through the inserting blocks and welding, so that the stress concentration is reduced, and the product performance is improved; and the service life of the rope head combination is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of elevator rope head technology, and in particular to an elevator steel belt rope head assembly. Background Technology

[0002] The elevator rope end assembly, in conjunction with the rope end plate, connects the traction steel wire rope to other components. The rope end assembly typically includes a rope end rod and a wedge sleeve. The wedge sleeve is mostly made using either a water glass process or a seamless steel pipe forging process. However, the water glass process generates a large amount of solid waste and has problems such as high electricity consumption and wastewater, making it environmentally unfriendly. Furthermore, the raw material for the water glass process is cast steel, resulting in relatively unstable material quality and low dimensional accuracy. The seamless steel pipe forging process involves many steps, high energy consumption, and uneven thickness of the forged material, leading to higher stress and a limited service life in the finished product.

[0003] The applicant disclosed a large-amplitude swinging rope end assembly in CN221521738U, including a rope end rod and a wedge sleeve. The rope end rod is inserted into the upper part of the wedge sleeve. The wedge sleeve is formed by bending sheet metal and includes a first plane and a second plane arranged in parallel. The lower parts of one side of the first plane and the second plane are connected by a first bending member. One end of the first bending member has an extension surface, which is located outside the other end of the first bending member. The two are welded together, and the weld is on the same side as the first plane or the second plane. The first bending member of the wedge sleeve in this patent is an arc bend, which has poor strength and low resistance to deformation. Utility Model Content

[0004] To address the aforementioned issues, this invention provides an elevator steel belt rope head assembly that increases the strength of the wedge sleeve and improves product performance.

[0005] Therefore, the technical solution of this utility model is: an elevator steel belt rope head assembly, including a rope head rod and a wedge sleeve, wherein the rope head rod is inserted into the upper part of the wedge sleeve, and the two are fixedly connected by a cylindrical pin; the wedge sleeve is formed by bending sheet metal at right angles, the sheet metal is bent to form a first plane, a connecting surface and a second plane, the connecting surface is perpendicular to the first plane and the second plane respectively, and a reinforcing plate is welded and fixed between the first plane and the second plane, the reinforcing plate being perpendicular to the first plane and the second plane; a wedge block is inserted in the middle of the wedge sleeve.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: multiple insertion holes are provided on the first plane and the second plane, and multiple insertion blocks are provided on both sides of the reinforcing plate, with the insertion blocks and insertion holes having an interference fit.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the reinforcing plate is welded and fixed at the joint between the reinforcing plate and the inner side of the first plane and the second plane.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the upper part of the first plane and the second plane is provided with a through hole, and a cylindrical pin is inserted through the through hole. The cylindrical pin passes through the lower part of the rope head rod to fix the rope head rod and the wedge sleeve.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: rubber rings are provided on the through-hole sides of the first plane and the second plane, and a cylindrical pin passes through the two rubber rings.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: one end of the cylindrical pin abuts against the outside of the wedge sleeve, and the other end is provided with a through limiting hole, and a first cotter pin is provided in the limiting hole, the first cotter pin locking the cylindrical pin and the wedge sleeve.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: the rope end rod is provided with two rope end cups, and the two rope end cups are connected by a spring.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: a thick flat pad and a flat pad are sleeved on the upper part of the rope end rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the rope end wedge sleeve is made by bending sheet metal, the sheet metal is formed by right-angle bending, the first plane, the second plane and the connecting surface are connected at right angles, the right angle has a stronger resistance to deformation than the rounded corner, and a reinforcing plate is added between the first plane and the second plane. The reinforcing plate is fixed to the first plane and the second plane by inserts and welding, which reduces stress concentration, improves product performance and extends the service life of the rope end assembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a top view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the wedge sleeve of this utility model;

[0017] Figure 4 This is a side view of the structure of the wedge sleeve of this utility model;

[0018] Figure 5 This is a schematic diagram showing the unfolded shape of the wedge sleeve of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the wedge block of this utility model.

[0020] The following components are marked in the diagram: rope end lever 1, wedge sleeve 2, first plane 21, connecting surface 22, second plane 23, reinforcing plate 24, insertion hole 25, insertion block 26, through hole 27, cylindrical pin 3, first cotter pin 4, wedge block 5, lower cup 6, spring 7, upper cup 8, flat washer 9, nut 10, second cotter pin 11, rubber ring 12. Detailed Implementation

[0021] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0023] See the attached diagram. The elevator steel belt rope head assembly described in this embodiment includes a rope head rod 1 and a wedge sleeve 2. The wedge sleeve 2 is formed by bending sheet metal at right angles, using sheet metal with a thickness of 3mm to 6mm, and is stamped using a punch press or hydraulic press. Figure 5 As shown, the stamped sheet metal body includes an inverted trapezoidal surface and extended surfaces on both sides. The inverted trapezoidal surface is directly bent along two dotted lines to form a first plane 21, a connecting surface 22, and a second plane 23. The connecting surface 22 is perpendicular to the first plane 21 and the second plane 23, respectively.

[0024] A reinforcing plate 24 is fixed between the first plane 21 and the second plane 23. The reinforcing plate 24 is also a sheet metal part and is perpendicular to the first plane 21 and the second plane 22. Multiple insertion holes 25 are provided on the first plane 21 and the second plane 23, and multiple insertion blocks 26 are provided on both sides of the reinforcing plate 24. The insertion blocks 26 are interference-fitted with the insertion holes 25. The joints between the reinforcing plate 24 and the inner sides of the first plane 21 and the second plane 23 are fixed by welding. A wedge block 5 is inserted in the middle of the wedge sleeve. The wedge block 5 has a teardrop-shaped structure and can be inserted between the first plane 21 and the second plane 23.

[0025] The rope end lever 1 is inserted into the upper part of the wedge sleeve 2. The upper part of the first plane 21 and the second plane 23 of the wedge sleeve 2 is provided with a through hole 27. The cylindrical pin 3 passes through the through hole 27 to fix the rope end lever 1 and the wedge sleeve 2. The cylindrical pin 3 passes through two rubber rings 12 (nylon). The rubber rings 12 are located on the upper left and right sides of the wedge sleeve 2. A first cotter pin 4 is provided vertically through one side of the cylindrical pin 3. The first cotter pin 4 passes vertically through and fits against the outer side of the wedge sleeve 2. The first cotter pin 4 limits the cylindrical pin 3 in the lateral direction and prevents the cylindrical pin 3 from moving laterally out of the wedge sleeve 2, thereby locking the cylindrical pin 3 and the wedge sleeve 2.

[0026] The rope end lever 1 has two rope end cups. The upper cup 8 has no protrusion, while the lower cup 6 has a protrusion. The two rope end cups are connected by a spring 7. A flat pad 9 is fitted onto the upper part of the rope end lever 1.

[0027] The top of the rope end rod 1 is drilled, and an external thread structure is provided below the pin hole. Two nuts 10 are screwed into the external thread structure. The first nut and the second nut are spaced apart vertically. The pin hole is located above the flat washer 9. The second cotter pin 11 passes through the pin hole and is fixed to the top of the rope end rod 1.

[0028] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An elevator steel belt rope head assembly, comprising a rope head pull rod and a wedge sleeve, wherein the rope head pull rod is inserted into the upper part of the wedge sleeve, and the two are fixedly connected by a cylindrical pin; characterized in that: The wedge sleeve is formed by bending sheet metal at right angles, with the sheet metal bent to form a first plane, a connecting surface, and a second plane. The connecting surface is perpendicular to the first plane and the second plane, respectively. A reinforcing plate is also welded and fixed between the first plane and the second plane, and the reinforcing plate is perpendicular to the first plane and the second plane. A wedge block is inserted in the middle of the wedge sleeve.

2. The elevator steel belt rope head assembly as described in claim 1, characterized in that: The first and second planes are provided with multiple insertion holes, and the reinforcing plate is provided with multiple insertion blocks on both sides, with the insertion blocks and insertion holes being interference fit.

3. The elevator steel belt rope head assembly as described in claim 2, characterized in that: The reinforcing plate is welded and fixed at the joints between itself and the inner sides of the first and second planes.

4. The elevator steel belt rope head assembly as described in claim 1, characterized in that: The upper part of the first plane and the second plane is provided with a through hole, and a cylindrical pin is inserted through the through hole. The cylindrical pin passes through the lower part of the rope end rod to fix the rope end rod and the wedge sleeve.

5. The elevator steel belt rope head assembly as described in claim 4, characterized in that: Rubber rings are provided on the through holes of the first and second planes, and a cylindrical pin passes through the two rubber rings.

6. The elevator steel belt rope head assembly as described in claim 5, characterized in that: One end of the cylindrical pin abuts against the outside of the wedge sleeve, and the other end is provided with a through limiting hole. A first cotter pin is provided in the limiting hole, and the first cotter pin locks the cylindrical pin and the wedge sleeve.

7. The elevator steel belt rope head assembly as described in claim 3, characterized in that: The rope end lever is equipped with two rope end cups, which are connected by a spring.

8. The elevator steel belt rope head assembly as described in claim 7, characterized in that: The upper part of the rope end rod is fitted with a thick flat pad and a flat pad.

Images