A tool for dismounting a roller box counter shaft and bearing

Abstract

The utility model relates to roll box device field, want to provide a kind of for roll box deputy axle and bearing dismounting tool, solved the problem that deputy axle dismantling has security risk, including chassis, threaded sleeve and screw rod, the chassis is provided with through-hole, the threaded sleeve is provided with threaded hole, the threaded hole is provided with internal thread, the threaded sleeve is set on the chassis, the threaded hole is communicated with the through-hole;The chassis is provided with connecting portion, the connecting portion is used to connect on the axle sleeve, the screw rod extension end is aligned with deputy axle, because screw rod rotation setting, screw rod is set in threaded sleeve, chassis is fixed together with axle sleeve by connecting portion, screw rod extension end is aligned with deputy axle, when screw rod rotates in threaded sleeve, screw rod can be tightly closed deputy axle, only to separate deputy axle and bearing, so less manual is needed, and safe and reliable, thus solved the problem that deputy axle dismantling has security risk.

Description

TECHNICAL FIELD

[0001] The utility model relates to roll box device field, especially a kind of roll box auxiliary shaft and bearing dismounting tool. BACKGROUND

[0002] The straight plate three sides of the outer edge of the shaft sleeve of roll box auxiliary shaft are flush with the outer diameter of the shaft sleeve, one side is protruding, the overall shape cannot be operated by conventional two-jaw or three-jaw draw horse, and the conventional dismounting method is to use hydraulic jack to extrude shaft head, which needs to fix the shaft sleeve and the jack, and there is certain safety risk, such as the risk of hand clamping during carrying, the risk of jack falling and hitting hand during pressing down, and the need for two people to cooperate during dismounting, which consumes manpower.

[0003] How to safely and conveniently remove auxiliary shaft is a problem to be solved. INVENTION CONTENTS

[0004] The utility model aims at providing a kind of roll box auxiliary shaft and bearing dismounting tool, solve the problem of safety risk in auxiliary shaft removal.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is:

[0006] The utility model provides a kind of roll box auxiliary shaft and bearing dismounting tool, including chassis, threaded sleeve and screw rod, the chassis has through-hole, the threaded sleeve has threaded hole, the threaded hole has internal thread, the threaded sleeve is arranged on the chassis, the threaded hole is communicated with the through-hole;

[0007] The screw rod has external thread, the external thread on the screw rod is engaged with the internal thread in the threaded hole, and the screw rod passes through the threaded hole and the through-hole;

[0008] The chassis is provided with a connecting part, and the connecting part is used to connect the shaft sleeve, and the extension end of the screw rod is aligned with the auxiliary shaft.

[0009] Optionally, the threaded sleeve is further provided with a guide sleeve, the screw rod passes through the guide sleeve, and the threaded sleeve is located between the chassis and the guide sleeve.

[0010] Further, a limiting surface is provided on the guide sleeve, and the limiting surface is used for fixing other accessories.

[0011] Optionally, the connecting part includes a fixing hole and a bolt, the fixing hole is arranged on the chassis, the bolt passes through the fixing hole, and the bolt is used to connect the shaft sleeve.

[0012] Optionally, the screw rod is provided with a rotating head at the length direction end, the rotating head is provided with a clamping surface, and the rotating head is away from the auxiliary shaft.

[0013] Further, a motor is arranged in cooperation with the rotating head, and the rotating head is connected to a driving end of the motor.

[0014] By means of the above technical scheme, the utility model has the following advantages compared with the prior art:

[0015] The utility model discloses a kind of tools for roll box auxiliary shaft and bearing dismounting, because screw rod rotation is arranged, screw rod is arranged in threaded sleeve, bottom disc is fixed together with shaft sleeve by connecting portion, screw rod extension end is aligned auxiliary shaft, when screw rod rotates in threaded sleeve, screw rod can be tightly pressed auxiliary shaft, until the auxiliary shaft and bearing are separated, so less manual is needed, and safe and reliable, thus solve the problem of safety risk in auxiliary shaft removal. BRIEF DESCRIPTION OF DRAWINGS

[0016] Some specific embodiments of the utility model will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but not restrictive manner. The same reference signs in the drawings denote the same or similar components or parts. It should be understood by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:

[0017] Figure 1 is a perspective view of a tool for roll box auxiliary shaft and bearing dismounting according to a preferred embodiment of the utility model;

[0018] Figure 2 is Figure 1 a perspective view of the connection with the shaft sleeve;

[0019] Figure 3 is a separation view of the bottom disc and the threaded sleeve;

[0020] Figure 4 is a sectional view of the connection of the shaft sleeve and the auxiliary shaft.

[0021] In the drawings, the reference signs are explained as follows:

[0022] 1, bottom disc; 2, threaded sleeve; 3, screw rod; 4, guide sleeve; 5, rotating head; 6, motor; 7, shaft sleeve; 8, auxiliary shaft; 9, bearing; 11, through hole; 12, connecting portion; 13, fixing hole; 14, bolt; 20, threaded hole; 40, limiting surface; 50, clamping surface. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as there is no conflict.

[0026] As Figure 1 and Figure 2 and Figure 3 As shown in the figure, the tool for dismounting the auxiliary shaft and bearing of the roller box comprises a base plate 1, a threaded sleeve 2 and a screw rod 3, the base plate 1 is provided with a through hole 11, the threaded sleeve 2 is provided with a threaded hole 21 with internal threads in the inside, and the threaded sleeve 2 is arranged on the base plate 1, in this case, the threaded sleeve 2 is welded on the base plate 1, and the threaded hole 21 is communicated with the through hole 11.

[0027] The base plate 1 is provided with a connecting part 12 for connecting to the shaft sleeve 7.

[0028] The screw rod 3 is provided with external threads, the external threads on the screw rod 3 are engaged with the internal threads in the threaded hole 21, the screw rod 3 passes through the threaded hole 20 and the through hole 11, and the screw rod 3 can move in the threaded hole 21 and the through hole 11 by rotating the screw rod 3, the extending end of the screw rod 3 is aligned with the auxiliary shaft 8 until the screw rod 3 abuts against the auxiliary shaft 8, and the auxiliary shaft 8 and the bearing 9 are separated by continuing to rotate the screw rod 3.

[0029] Then the screw rod 3 starts to reverse, and the screw rod 3 leaves the inside of the shaft sleeve 7.

[0030] The threaded sleeve 2 is further provided with a guide sleeve 4, the screw rod 3 passes through the guide sleeve 4, the threaded sleeve 2 is located between the base plate 1 and the guide sleeve 4, the inside of the guide sleeve 4 is empty, the guide sleeve 4 plays a guiding role, and the guide sleeve 4 can also prevent the external threads on the screw rod 3 from being damaged, and the guide sleeve 4 is welded with the threaded sleeve 2.

[0031] The guide sleeve 4 is provided with limiting surfaces 40, there are at least two limiting surfaces 40, the limiting surfaces 40 are used for fixing other accessories, the shaft sleeve 7 is prevented from rotating together with the screw rod 3 when the screw rod 3 rotates, and the two limiting surfaces 40 can be clamped by pliers, so that the guide sleeve 4, the threaded sleeve 2, the base plate 1 and the shaft sleeve 7 will not rotate together with the screw rod 3.

[0032] The connecting part 12 includes fixing holes 13 and bolts 14. The number of bolts 14 matches the number of fixing holes 13. Multiple fixing holes 13 and multiple bolts 14 are provided. The fixing holes 13 are provided on the chassis 1. The multiple fixing holes 13 are evenly distributed on the chassis 1. The bolts 14 pass through the fixing holes 13. The bolts 14 are used to connect the bushing 7. The bolts 14 fix the chassis 1 and the bushing 7 together. When not needed, the bolts 14 can be loosened and the chassis 1 and the bushing 7 can be separated.

[0033] A rotating head 5 is provided at the end of the lead screw 3 along its length. The rotating head 5 is provided with a clamping surface 50. The rotating head 5 is away from the countershaft 8. When using the lead screw 3, the countershaft 8 and the rotating head 5 are located in two different extension directions of the lead screw 3. At least two clamping surfaces 50 are provided. The two clamping surfaces 50 help the rotating head 5 to rotate. The two clamping surfaces 50 can cooperate with other accessories to rotate.

[0034] A motor 6 is provided in conjunction with the rotating head 5. The rotating head 5 is connected to the drive end of the motor 6. The motor 6 drives the rotating head 5, which in turn drives the lead screw 3 to rotate. The motor 6 can also be replaced with a wrench.

[0035] like Figure 4 As shown, the chassis 1 is fixed to the bushing 7 via the connecting part 12. The secondary shaft 8 and the bearing 9 are both inside the bushing 7. The bearing 9 is inserted into the end of the secondary shaft 8.

[0036] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A tool for disassembling a roller box sub-shaft and bearings, comprising a base (1), a threaded sleeve (2), and a lead screw (3), characterized in that, The chassis (1) has a through hole (11), the threaded sleeve (2) has a threaded hole (20), the threaded hole (20) has an internal thread, the threaded sleeve (2) is disposed on the chassis (1), and the threaded hole (20) communicates with the through hole (11); The lead screw (3) has an external thread, which meshes with the internal thread in the threaded hole (20). The lead screw (3) passes through the threaded hole (20) and the through hole (11). The chassis (1) is provided with a connecting part (12), which is used to connect to the bushing, and the extension end of the lead screw (3) is aligned with the secondary shaft.

2. The tool for disassembling the roller box auxiliary shaft and bearings according to claim 1, characterized in that, The threaded sleeve (2) is also provided with a guide sleeve (4), the lead screw (3) passes through the guide sleeve (4), and the threaded sleeve (2) is located between the chassis (1) and the guide sleeve (4).

3. The tool for disassembling the roller box auxiliary shaft and bearings according to claim 2, characterized in that, The guide sleeve (4) is provided with a limiting surface (40).

4. The tool for disassembling the roller box auxiliary shaft and bearings according to claim 1, characterized in that, The connecting part (12) includes a fixing hole (13) and a bolt (14). The fixing hole (13) is provided on the chassis (1), and the bolt (14) passes through the fixing hole (13). The bolt (14) is used to connect the bushing.

5. The tool for disassembling the roller box auxiliary shaft and bearings according to claim 1, characterized in that, The lead screw (3) has a rotating head (5) at its long end, and the rotating head (5) has a clamping surface (50) on it. The rotating head (5) is far away from the secondary shaft.

6. The tool for disassembling the roller box auxiliary shaft and bearings according to claim 5, characterized in that, A motor (6) is provided in conjunction with the rotating head (5), and the rotating head (5) is connected to the drive end of the motor (6).

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