Lightweight modular keyless transmission walking wheel box

Abstract

The utility model belongs to the technical field of walking wheel boxes, and discloses a lightweight modular keyless transmission walking wheel box which comprises a wheel box body, wheels are installed in the wheel box body, two symmetrically-arranged bearings are installed between the wheels and the wheel box body, inner side oil seal covers are arranged on the opposite sides of the bearings, and the inner side oil seal covers are provided with inner side oil seal covers. An outer oil seal cover is arranged on the side, away from each other, of the bearing, a corresponding groove is formed in the middle of one side of the wheel, a shaft rod is arranged in the corresponding groove, a locking bolt is installed on the other side of the wheel and penetrates through the wheel to be in threaded connection with the shaft rod, and the conical shaft and the wheel are matched through a conical surface and then locked through the locking bolt. Friction type torque transmission is adopted, the structure is simple, mounting and dismounting are more convenient, compared with gap sealing in the prior art, the oil seal covers arranged on the inner side and the outer side of the bearing cannot generate abnormal sound of the bearing, and the oil seal covers adopt sheet high-elasticity sealing rings and are suitable for being used in various production environments.

Description

TECHNICAL FIELD

[0001] The utility model belongs to walking wheel box technical field, specifically a kind of lightweight modularization no key transmission's walking wheel box. BACKGROUND

[0002] Various heavy-duty walking trolley and the wheel of stacker are independently designed, adopt key or spline transmission, wheel disassembly maintenance is difficult, transmission fatigue wear is serious or processing difficulty is high, independently designed wheel maintenance is difficult to disassemble, and need to confirm fault on site, affect production line production;Key transmission is easy to fatigue fracture under heavy load, spline processing cost is high;Adopt gap seal, there is bearing abnormal noise problem.

[0003] Therefore, aiming at the above problems, a kind of lightweight modularization no key transmission's walking wheel box is provided. UTILITY MODEL CONTENTS

[0004] To solve the problems presented in the above background art, the utility model provides a kind of lightweight modularization no key transmission's walking wheel box, with the advantages that simple structure, easy to disassemble and easy to process are adopted in friction torque transmission.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of lightweight modularization no key transmission's walking wheel box, including wheel box, the wheel is installed in the wheel box, two symmetrical bearings are installed between the wheel and the wheel box, the inner side oil seal cover is equipped on the opposite side of the bearing, the outer side oil seal cover is equipped on the side far from the bearing, the oil seal cover of setting in the inner and outer sides of bearing compared with the gap seal in prior art, will not produce bearing abnormal noise, and oil seal cover adopts sheet high-elasticity sealing ring, is suitable for various production environment use, the corresponding slot is set in the middle position of one side of the wheel, the shaft rod is equipped in the corresponding slot, the locking bolt is installed on the other side of the wheel, the locking bolt is connected with the shaft rod by penetrating the wheel thread, the tapered shaft that the end of the shaft rod is formed into the taper of cross section is formed in the corresponding slot, the matching surface that is matched with the tapered shaft is formed in the inner wall of the corresponding slot, the tapered shaft and the wheel are matched by taper surface, then locked by locking bolt, simple structure is adopted in friction torque transmission, and installation and disassembly are more convenient.

[0006] Preferably, the wheel box is composed of two symmetrically arranged box bodies, the two box bodies are connected by fixing bolts, the box body is integrally formed, the whole is disassembled and replaced, and the installation mode of the upper bearing, the lateral bearing and the central bearing of the wheel box 1 can be considered.

[0007] Preferably, the wheel is recessed inward on both sides to form a positioning protrusion, a through hole is formed on the wheel box in a position corresponding to the positioning protrusion, and the bearing is arranged between the inner wall of the through hole and the positioning protrusion.

[0008] Preferably, the wheel box is provided with a pressure injection nozzle corresponding to the bearing position, and the lubricating oil is injected into the bearing position through the pressure injection nozzle to keep the bearing lubricated and avoid friction noise.

[0009] Preferably, the taper shaft is provided with a threaded groove corresponding to the locking bolt.

[0010] Preferably, the wheel box is provided with a hidden groove corresponding to the fixing bolt, and the wheel is provided with a hidden groove corresponding to the locking bolt.

[0011] Preferably, the outer oil seal cover is clamped by the outer ring of the bearing and the wheel box, and the outer oil seal cover and the inner ring of the bearing are in sliding fit structure, and the inner oil seal cover is clamped by the inner ring of the bearing and the wheel, and the inner oil seal cover and the outer ring of the bearing are in sliding fit structure.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The utility model discloses a taper shaft and a matching surface are arranged, the taper shaft and the wheel are matched through the taper surface, and then are locked through the locking bolt, adopts the friction type torque transmission, and the structure is simple, and installation and dismounting are more convenient.

[0014] 2、The utility model discloses the oil seal cover of setting in the bearing inside and outside both sides, compared with the gap seal in the prior art, will not produce bearing noise, and the oil seal cover adopts the sheet high elasticity sealing ring, is suitable for various production environment uses. DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model;

[0016] Figure 2 It is the sectional structure schematic view of the utility model;

[0017] Figure 3 It is the structure schematic view of the box body of the utility model;

[0018] Figure 4 It is the structure schematic view of the shaft pole of the utility model;

[0019] Figure 5 It is the structure schematic view of the utility model Figure 2 The enlarged structure schematic view of A in the utility model.

[0020] In the drawing: 1, wheel box;101, box body;102, through hole;

[0021] 2, wheel;201, positioning convex;

[0022] 3, bearing;4, inner oil seal cover;5, outer oil seal cover;

[0023] 6. Corresponding groove; 601. Matching surface;

[0024] 7. Shaft; 701. Tapered shaft;

[0025] 8. Locking bolt; 9. Fixing bolt; 10. Oil injection nozzle; 11. Threaded groove; 12. Hidden groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figures 1 to 5 As shown, the utility model provides a lightweight modular keyless transmission walking wheel box, including a wheel box 1, a wheel 2 is installed in the wheel box 1, and two symmetrically arranged bearings 3 are installed between the wheel 2 and the wheel box 1. An inner oil seal cover 4 is provided on the opposite side of the bearing 3, and an outer oil seal cover 5 is provided on the side away from the bearing 3. The oil seal covers arranged on the inner and outer sides of the bearing 3 will not produce abnormal noise of the bearing 3 compared with the gap seal in the prior art, and the oil seal cover adopts a thin and highly elastic sealing ring, which is suitable for use in various production environments. A corresponding groove 6 is opened in the middle position of one side of the wheel 2, and a shaft rod 7 is provided in the corresponding groove 6. A locking bolt 8 is installed on the other side of the wheel 2, and the locking bolt 8 passes through the wheel 2 and is threadedly connected to the shaft rod 7. A tapered shaft 701 with a conical cross section is formed on one end of the shaft rod 7 extending into the corresponding groove 6, and a matching surface 601 matching the tapered shaft 701 is formed on the inner wall of the corresponding groove 6. The tapered shaft 701 and the wheel 2 are matched through the tapered surface and then locked by the locking bolt 8. The friction torque transmission structure is simple and the installation and disassembly are more convenient.

[0028] Specifically, the wheel box 1 is composed of two symmetrically arranged boxes 101, which are connected by fixing bolts 9. The one-piece box 101 can be disassembled and replaced as a whole, and can take into account the installation method of the upper load-bearing, lateral load-bearing and center shaft load of the wheel box 1.

[0029] Furthermore, positioning protrusions 201 are formed inwardly on both sides of the wheel 2 , and through holes 102 are formed on the wheel box 1 at positions corresponding to the positioning protrusions 201 . The bearing 3 is arranged between the inner wall of the through hole 102 and the positioning protrusions 201 .

[0030] Furthermore, a pressure oiling nozzle 10 is installed at a position corresponding to the bearing 3 on the wheel box 1, and lubricating oil is pressed into the position of the bearing 3 through the pressure oiling nozzle 10 to keep the bearing 3 lubricated and avoid abnormal friction noise.

[0031] It is worth mentioning that the threaded groove 11 is arranged on the taper shaft 701 corresponding to the locking bolt 8, and the threaded groove 11 is threadedly connected with the locking bolt 8.

[0032] It is worth noting that the hidden groove 12 is arranged on the wheel box 1 corresponding to the fixing bolt 9 and on the wheel 2 corresponding to the locking bolt 8.

[0033] It is worth mentioning that the outer oil seal cover 5 is clamped by the outer ring of the bearing 3 and the wheel box 1, and the outer oil seal cover 5 and the inner ring of the bearing 3 are in a sliding fit structure, and the inner oil seal cover 4 is clamped by the inner ring of the bearing 3 and the wheel 2, and the inner oil seal cover 4 and the outer ring of the bearing 3 are in a sliding fit structure.

[0034] Working principle and process: the wheel 2 is installed in the wheel box 1, the wheel box 1 is composed of two symmetrical box bodies 101, and the two symmetrical box bodies 101 are fixedly connected through the fixing bolt 9, the box body 101 is integrally formed, and the whole can be disassembled and replaced, which can consider the installation mode of the upper bearing, the lateral bearing and the central bearing of the wheel box 1, the oil seal cover is arranged on the inner and outer sides of the bearing 3, the outer oil seal cover 5 is clamped by the outer ring of the bearing 3 and the wheel box 1, and the outer oil seal cover 5 and the inner ring of the bearing 3 are in a sliding fit structure, and the inner oil seal cover 4 is clamped by the inner ring of the bearing 3 and the wheel 2, and the inner oil seal cover 4 and the outer ring of the bearing 3 are in a sliding fit structure, compared with the gap seal in the prior art, the bearing 3 will not produce abnormal sound, and the oil seal cover adopts a thin high-elasticity sealing ring, which is suitable for various production environments, the lubricating oil is injected into the position of the bearing 3 through the injection nozzle 10 to keep the lubrication of the bearing 3, avoid friction and abnormal sound, the taper shaft 701 of the shaft rod 7 extends into the corresponding groove 6 on the wheel 2, the taper shaft 701 and the wheel 2 are matched through the taper surface, and then locked through the locking bolt 8, the friction torque transmission structure is simple, and the installation and disassembly are more convenient.

[0035] It should be noted that in this text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0036] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight modular keyless transmission walking wheel box comprising a wheel box (1), characterized in that: The wheel box (1) is internally provided with a wheel (2), two symmetrical bearings (3) are arranged between the wheel (2) and the wheel box (1), an inner oil seal cover (4) is arranged on the opposite side of the bearing (3), an outer oil seal cover (5) is arranged on the side away from the bearing (3), a corresponding groove (6) is formed in the middle of one side of the wheel (2), the corresponding groove (6) is provided with a shaft (7), a locking bolt (8) is arranged on the other side of the wheel (2), the locking bolt (8) penetrates the wheel (2) and is threadedly connected with the shaft (7), one end of the shaft (7) extending into the corresponding groove (6) is formed with a tapered shaft (701) with a tapered cross section, and the inner wall of the corresponding groove (6) is formed with a matching surface (601) matched with the tapered shaft (701).

2. The lightweight modular keyless transmission walking wheel box of claim 1, wherein: The wheel box (1) is composed of two symmetrical box bodies (101), and the two box bodies (101) are connected through fixing bolts (9).

3. The lightweight modular keyless transmission walking wheel box of claim 1, wherein: The wheel (2) is inwardly recessed on both sides to form positioning protrusions (201), the wheel box (1) is formed with through holes (102) corresponding to the positioning protrusions (201), and the bearing (3) is arranged between the inner wall of the through hole (102) and the positioning protrusion (201).

4. The lightweight modular keyless transmission walking wheel box of claim 1, wherein: The wheel box (1) is provided with a pressure injection nozzle (10) corresponding to the bearing (3).

5. The lightweight modular keyless transmission walking wheel box of claim 1, wherein: The tapered shaft (701) is provided with a threaded groove (11) corresponding to the locking bolt (8), and the threaded groove (11) is threadedly connected with the locking bolt (8).

6. The lightweight modular keyless transmission walking wheel box of claim 2, wherein: The wheel box (1) is provided with a hidden groove (12) corresponding to the fixing bolt (9), and the wheel (2) is provided with a hidden groove (12) corresponding to the locking bolt (8).

7. The lightweight modular keyless transmission walking wheel box of claim 1, wherein: The outer oil seal cover (5) is clamped by abutting against the wheel box (1) through the outer ring of the bearing (3), the outer oil seal cover (5) and the inner ring of the bearing (3) are in a sliding fit structure, the inner oil seal cover (4) is clamped by the inner ring of the bearing (3) and the wheel (2), and the inner oil seal cover (4) and the outer ring of the bearing (3) are in a sliding fit structure.

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