Roller cage shoe device

Abstract

The utility model relates to the technical field of mine hoisting equipment, in particular to a roller cage shoe device which comprises a main wheel base, a shaft bracket, a disc spring buffer assembly, a mandrel and a roller group, the shaft bracket is arranged on the upper side of the main wheel base, the bottom of the shaft bracket is movably connected with the upper side of the main wheel base through a pin shaft, and the mandrel is arranged close to the upper end in the shaft bracket. The front end of the mandrel is fixedly connected with the front side of the shaft bracket through a locking nut, a safety spare plate is arranged on the front side of the locking nut and fixed to the front end of the mandrel through a pair of plate fixing bolts, a top end bolt is arranged on the upper side of the mandrel, the upper side of the mandrel is fixedly connected with the upper end of the shaft bracket through the top end bolt, and a roller set is arranged on the rear side of the shaft bracket and comprises a bearing chamber. According to the utility model, the rear end of the mandrel is changed into a large-head shaft end, so that a wheel head can rotate flexibly, the potential safety hazard of thread withdrawing is avoided, a disc spring inner thread sleeve is arranged in the outer cylinder, and a plurality of disc spring sheets are stacked in series and are mutually rotated with an adjusting screw rod for adjustment.

Description

Technical Field

[0001] The utility model relates to the technical field of mine hoisting equipment, in particular to a roller tank ear device. Background Art

[0002] Roller tank ears are essential products for the production of mine hoisting equipment. They are installed on the top and bottom of the cage to assist in lifting operations and must meet the standards of the National Safety Marking Center before they can be used.

[0003] The existing roller ear products still use the original locking nut for the core shaft, bearing chamber and bearing fastening. When the cage is produced and lifted, it runs up and down (that is, left and right). In principle, it turns right and the thread should be positive thread, and turns left for negative thread. If there is any inappropriateness, there is a possibility of thread withdrawal. In addition, there is a problem of inconvenient adjustment in the disc spring buffer assembly, in which the buffer piston rod and the outer cylinder are not moving, the inner cylinder is tightly squeezed with the piston rod disc and the disc spring sheet, the wellhead is humid and the reduction is large, and adjustment is quite difficult over time. Utility Model Content

[0004] The utility model provides a roller can ear device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A roller ear device comprises a main wheel base, an axle frame, a disc spring buffer assembly, a core shaft and a roller group, wherein the upper side of the main wheel base is provided with a core shaft, the bottom of the core shaft is movably connected to the upper side of the main wheel base through a pin shaft, a core shaft is provided inside the core shaft near the upper end, the front end of the core shaft is fixedly connected to the front side of the axle frame through a locking nut, a safety plate is provided on the front side of the locking nut, the safety plate is fixed to the front end of the core shaft through a pair of fixing plate bolts, a top bolt is provided on the upper side of the core shaft, and the upper side of the core shaft is fixedly connected to the upper end of the axle frame through the top bolt. A fixed connection is provided, a roller group is provided on the rear side of the shaft frame, and the roller group includes a bearing chamber. The front side of the bearing chamber is fixedly connected to the rear side of the shaft frame by bolts. The core shaft is located in the bearing chamber, and a big head shaft end is provided at the rear end of the core shaft. A rolling bearing is provided on the front side of the big head shaft end. The rolling bearing is movably connected to the core shaft on the front side of the big head shaft end. A disc spring buffer assembly is provided on the right side of the shaft frame. The upper end of the disc spring buffer assembly is movably connected to the right side of the upper end of the shaft frame through a pin shaft, and the lower end of the disc spring buffer assembly is rotatably connected to the main wheel base.

[0007] Furthermore, the disc spring buffer assembly includes an outer cylinder, an adjusting screw is provided in the outer cylinder, the adjusting screw is movably connected to the bottom of the outer cylinder, a spare nut is provided on the lower side of the outer cylinder, the spare nut is connected to the adjusting screw through a thread, and an adjusting hexagonal plate opening is opened at the upper end of the spare nut.

[0008] Furthermore, a buffer piston rod is provided at the upper end of the adjusting screw, the upper end of the buffer piston rod is movably connected to the right side of the upper end of the shaft frame through a pin shaft, the buffer piston rod is movably connected to the upper end of the adjusting screw, and the lower end of the adjusting screw is movably connected to the main wheel base through a pin shaft.

[0009] Furthermore, a thrust bearing is provided on the buffer piston rod, a pre-tightening screw is provided above the thrust bearing, and the pre-tightening screw is connected to the inner upper end of the outer cylinder through a thread.

[0010] Furthermore, a disc spring inner thread sleeve is provided in the outer cylinder, and the disc spring inner thread sleeve is composed of a plurality of disc spring sheets stacked in series, and the inner side of the disc spring inner thread sleeve is connected to the adjusting screw by a thread.

[0011] Beneficial effects:

[0012] 1. The rear end of the mandrel in the utility model adopts a large-head shaft end style, and no nut is used to tighten the bearing. The pin directly penetrates the two bearings, and the other end is screwed with a screw to adapt to the gap, so that the wheel head can rotate flexibly, eliminating the safety hazard of wire withdrawal.

[0013] 2. The buffer piston rod in the utility model is movably connected to the shaft frame through an axle pin, and the adjusting screw is movably connected to the main wheel base through a pin shaft. A disc spring inner thread sleeve is arranged in the outer cylinder, which is composed of multiple disc spring sheets stacked in series and mutually rotated with the adjusting screw for adjustment.

[0014] 3. The assembly method of the disc spring buffer assembly in the utility model is as follows: assemble them one by one in sequence, use the thrust bearing to press the disc at the lower end of the buffer sleeve to squeeze the multiple disc springs in the inner thread sleeve of the disc spring, and then screw the pre-tightening screw and the outer cylinder into a whole. In order to ensure the safety of the buffer assembly and prevent the thread from being withdrawn, install a spare nut on the lower side of the outer cylinder and under the adjusting screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a main structural schematic diagram of the utility model;

[0016] Figure 2 It is a left side cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the main structure of the disc spring buffer assembly of the utility model;

[0018] Reference numerals:

[0019] 1 Main wheel base, 2 shaft frame, 3 spindle, 4 fixing plate bolts, 5 insurance spare plate, 6 locking nut, 7 big head shaft end, 8 bearing chamber, 9 disc spring buffer assembly, 10 buffer piston rod, 11 outer cylinder, 12 disc spring inner thread sleeve, 13 adjusting screw, 14 spare nut, 15 thrust bearing, 16 preload screw, 17 adjusting hexagonal plate mouth, 18 top bolt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] Reference Figure 1-3 A roller ear device comprises a main wheel base 1, an axle frame 2, a disc spring buffer assembly 9, a spindle 3 and a roller group. The main wheel base 1 is provided with a spindle frame 2 on the upper side, and the bottom of the spindle frame 2 is movably connected to the upper side of the main wheel base 1 through a pin shaft. A spindle 3 is provided inside the spindle frame 2 near the upper end, and the front end of the spindle 3 is fixedly connected to the front side of the spindle frame 2 through a locking nut 6. A safety plate 5 is provided on the front side of the locking nut 6, and the safety plate 5 is fixed to the front end of the spindle 3 through a pair of fixing plate bolts 4. A top bolt 18 is provided on the upper side of the spindle 3, and the upper side of the spindle 3 is connected to the spindle frame through the top bolt 18. 2 is fixedly connected at the upper end, a roller group is provided on the rear side of the shaft frame 2, and the roller group includes a bearing chamber 8. The front side of the bearing chamber 8 is fixedly connected to the rear side of the shaft frame 2 by bolts. The core shaft 3 is located in the bearing chamber 8. A big head shaft end 7 is provided at the rear end of the core shaft 3. A rolling bearing is provided on the front side of the big head shaft end 7. The rolling bearing is movably connected to the core shaft 3 on the front side of the big head shaft end 7. A disc spring buffer assembly 9 is provided on the right side of the shaft frame 2. The upper end of the disc spring buffer assembly 9 is movably connected to the right side of the upper end of the shaft frame 2 through a pin shaft, and the lower end of the disc spring buffer assembly 9 is movably connected to the main wheel base 1 through rotation.

[0023] The disc spring buffer assembly 9 includes an outer cylinder 11, in which an adjusting screw 13 is provided. The adjusting screw 13 is movably connected to the bottom of the outer cylinder 11. A spare nut 14 is provided on the lower side of the outer cylinder 11. The spare nut 14 is connected to the adjusting screw 13 through a thread, and an adjusting hexagonal plate opening 17 is opened at the upper end of the spare nut 14.

[0024] A buffer piston rod 10 is provided at the upper end of the adjusting screw 13, and the upper end of the buffer piston rod 10 is movably connected to the right side of the upper end of the shaft frame 2 through a pin shaft. The buffer piston rod 10 is movably connected to the upper end of the adjusting screw 13, and the lower end of the adjusting screw 13 is movably connected to the main wheel base 1 through a pin shaft.

[0025] The buffer piston rod 10 is provided with a thrust bearing 15 , and a pre-tightening screw 16 is provided above the thrust bearing 15 . The pre-tightening screw 16 is connected to the inner upper end of the outer cylinder 11 through a thread.

[0026] The outer cylinder 11 is provided with a disc spring inner thread sleeve 12, which is composed of a plurality of disc spring sheets stacked in series. The inner side of the disc spring inner thread sleeve 12 is connected to the adjusting screw 13 by threads.

[0027] Working principle:

[0028] The rear end of the mandrel 3 in the utility model is changed to a large-head shaft end 7 style, and no nut is used to penetrate the bearing for fastening. The pin shaft directly penetrates the two bearings, and a screw is used to screw and adapt to the gap at the other end, so that the wheel head can rotate flexibly, eliminating the safety hazard of wire withdrawal.

[0029] The buffer piston rod 10 in the utility model is movably connected to the shaft frame 2 through an axle pin, and the adjusting screw is movably connected to the main wheel base 1 through a pin shaft. A disc spring inner thread sleeve 12 is arranged in the outer cylinder 11, which is composed of multiple disc spring sheets stacked in series and mutually rotated with the adjusting screw for adjustment.

[0030] The utility model is assembled by assembling the disc spring buffer assembly 9 in sequence, using the thrust bearing 15 to press the disc at the lower end of the buffer sleeve to squeeze the multiple disc springs in the inner thread sleeve 12 of the disc spring, and then screwing the pre-tightening screw 16 with the outer cylinder 11 into a whole. In order to prevent the buffer from being withdrawn during the entire process, a spare nut 14 is installed on the lower side of the outer cylinder 11 and the lower side of the adjusting screw.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A roller can ear device, characterized in that: The invention comprises a main wheel base (1), an axle frame (2), a disc spring buffer assembly (9), a core shaft (3) and a roller group, wherein the upper side of the main wheel base (1) is provided with axle frame (2), the bottom of the axle frame (2) is movably connected to the upper side of the main wheel base (1) through a pin shaft, the inner side of the axle frame (2) is provided with a core shaft (3) near the upper end, the front end of the core shaft (3) is fixedly connected to the front side of the axle frame (2) through a locking nut (6), the front side of the locking nut (6) is provided with a safety plate (5), the safety plate (5) is fixed to the front end of the core shaft (3) through a pair of fixing plate bolts (4), the upper side of the core shaft (3) is provided with a top bolt (18), the upper side of the core shaft (3) is connected to the axle frame (2) through the top bolt (18), and the upper side of the core shaft (3) is connected to the axle frame (2) through the top bolt (18). 2) is fixedly connected at the upper end, a roller group is provided on the rear side of the shaft frame (2), and the roller group includes a bearing chamber (8). The front side of the bearing chamber (8) is fixedly connected to the rear side of the shaft frame (2) by bolts. The core shaft (3) is located in the bearing chamber (8). The rear end of the core shaft (3) is provided with a large head shaft end (7). The front side of the large head shaft end (7) is provided with a rolling bearing. The rolling bearing is movably connected to the core shaft (3) on the front side of the large head shaft end (7). A disc spring buffer assembly (9) is provided on the right side of the shaft frame (2). The upper end of the disc spring buffer assembly (9) is movably connected to the right side of the upper end of the shaft frame (2) by a pin shaft, and the lower end of the disc spring buffer assembly (9) is movably connected to the main wheel base (1) by rotation.

2. The roller can ear device according to claim 1, characterized in that: The disc spring buffer assembly (9) comprises an outer cylinder (11), an adjusting screw (13) is arranged in the outer cylinder (11), the adjusting screw (13) is movably connected to the bottom of the outer cylinder (11), a spare nut (14) is arranged on the lower side of the outer cylinder (11), the spare nut (14) is connected to the adjusting screw (13) through a thread, and an adjusting hexagonal plate opening (17) is opened at the upper end of the spare nut (14).

3. The roller can ear device according to claim 2, characterized in that: A buffer piston rod (10) is provided at the upper end of the adjusting screw (13); the upper end of the buffer piston rod (10) is movably connected to the right side of the upper end of the shaft frame (2) via a pin; the buffer piston rod (10) is movably connected to the upper end of the adjusting screw (13); and the lower end of the adjusting screw (13) is movably connected to the main wheel base (1) via a pin.

4. The roller can ear device according to claim 3, characterized in that: A thrust bearing (15) is provided on the buffer piston rod (10), a pre-tightening screw (16) is provided above the thrust bearing (15), and the pre-tightening screw (16) is connected to the inner upper end of the outer cylinder (11) through a thread.

5. The roller can ear device according to claim 2, characterized in that: A disc spring inner thread sleeve (12) is arranged in the outer cylinder (11). The disc spring inner thread sleeve (12) is composed of a plurality of disc spring sheets stacked in series. The inner side of the disc spring inner thread sleeve (12) is connected to the adjusting screw rod (13) through a thread.

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