Press fitting device for traction motor bearing

Abstract

The utility model discloses a traction motor bearing press fitting device. A fixed seat; the bearing frame is arranged on the upper end surface of the fixed seat; the hydraulic cylinder is fixedly installed on the upper end face of the bearing frame, and the telescopic end of the hydraulic cylinder penetrates through the upper wall of the bearing frame; the upper end face of the pressing block is fixedly connected with the telescopic end of the hydraulic cylinder; the clamping assembly is arranged on the upper end face of the fixing base and used for clamping a bearing, under the action of the clamping assembly, the bearing can be clamped and fixed, it can be prevented that the bearing deviates, and the press fitting quality is affected, meanwhile, under the action of a hydraulic cylinder, a rotating shaft can be pressed into the bearing through a pressing block, manual press fitting of workers can be reduced, and the working efficiency is improved. And meanwhile, the bearing can be prevented from being damaged, and convenience is brought to people.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing press-fitting, in particular to a traction motor bearing press-fitting device. Background Art

[0002] Bearings are components that support shafts, guide the shaft's rotational motion, and bear the load transmitted from the shaft to the frame. Bearings are widely used and strictly required accessories and basic parts in the machinery industry. They are supporting elements for rotating shafts or movable parts of various machines, and they are also supporting elements that rely on the rolling of rolling elements to achieve the rotation of the main machine. They are called mechanical joints.

[0003] During the processing and production of the motor, the shaft needs to be installed into the bearing hole. Currently, it usually needs to be knocked manually, which makes the installation efficiency low and the labor intensity high. In addition, the knocking process can easily cause bearing damage, affecting its service life. Utility Model Content

[0004] In order to solve the above problems, that is, to solve the problems raised by the above background technology, the utility model proposes a traction motor bearing press-fitting device, comprising:

[0005] A fixing seat, the upper end surface of which is formed with a groove;

[0006] A bearing frame, arranged on the upper end surface of the fixing seat;

[0007] A hydraulic cylinder is fixedly mounted on the upper end surface of the carrier, and a telescopic end thereof passes through the upper wall of the carrier;

[0008] A pressing block, the upper end surface of which is fixedly connected to the telescopic end of the hydraulic cylinder;

[0009] A placement groove is formed on the lower end surface of the pressing block;

[0010] Limit blocks, two pairs in number, both arranged in the placement slot;

[0011] A fixing groove is formed in the pressing block and communicated with the placement groove;

[0012] An elastic member, one end of which is connected to one end surface of the limit block, and the other end of which is connected to the inner wall surface of the fixing groove;

[0013] The clamping assembly is arranged on the upper end surface of the fixing seat and is used for clamping the bearing.

[0014] Preferably, the clamping assembly comprises:

[0015] Two pairs of fixed blocks are fixedly mounted on the upper end surface of the fixed seat;

[0016] A screw rod is rotatably mounted between the pair of fixed blocks;

[0017] A pair of connecting blocks, with both ends of the pair of connecting blocks being threadedly connected to the pair of screw rods respectively;

[0018] The clamping blocks are two in number and are respectively arranged on the end surfaces of a pair of the connecting blocks that are close to each other.

[0019] Preferably, it further comprises a pair of sprockets, wherein the pair of sprockets are respectively fixedly mounted on one end of the pair of screw rods close to each other, and the pair of sprockets are connected to each other via a chain.

[0020] Preferably, the lower end of the limit block is an inclined surface.

[0021] Preferably, the elastic member is a compression spring.

[0022] The beneficial technical effects of the utility model are as follows: under the action of the clamping assembly, the bearing can be clamped and fixed, which can prevent the bearing from shifting and affecting the press-fitting quality. At the same time, under the action of the hydraulic cylinder, the pressing block can be pressed into the rotating shaft of the bearing, which can reduce the manual press-fitting of the staff and improve the work efficiency. At the same time, it can also avoid bearing damage and bring convenience to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the front cross-sectional structure of the utility model is shown.

[0024] Figure 2 A schematic diagram of the cross-sectional structure of the support frame of the utility model is shown.

[0025] Figure 3 The utility model is shown Figure 1 Schematic diagram of the enlarged structure of part A.

[0026] Figure numerals 1, fixed seat, 2, supporting frame, 3, hydraulic cylinder, 4, pressure block, 5, placement groove, 6, limit block, 7, fixed groove, 8, elastic member, 9, fixed block, 10, screw rod, 11, connecting block, 12, clamping block, 13, sprocket, 14, chain. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0028] The utility model provides a traction motor bearing press-fitting device, comprising:

[0029] A fixing seat 1, the upper end surface of which is formed with a groove;

[0030] The support frame 2 is arranged on the upper end surface of the fixing seat 1;

[0031] The bottom end of the carrier 2 is welded to the upper end surface of the fixing seat 1 so as to be relatively fixed;

[0032] The hydraulic cylinder 3 is fixedly mounted on the upper end surface of the carrier frame 2, and the telescopic end thereof penetrates the upper wall of the carrier frame 2;

[0033] The upper end surface of the pressing block 4 is fixedly connected to the telescopic end of the hydraulic cylinder 3;

[0034] The extension or contraction of the telescopic end of the hydraulic cylinder 3 can drive the pressing block 4 to move, so that it can press the rotating shaft;

[0035] A placement groove 5 is formed on the lower end surface of the pressing block 4;

[0036] The placement slot 5 can facilitate the staff to insert one end of the rotating shaft into the pressing block 4;

[0037] Limit blocks 6, two pairs in number, both arranged in the placement slot 5;

[0038] A fixing groove 7 is formed in the pressing block 4 and communicated with the placement groove 5;

[0039] An elastic member 8, one end of which is connected to one end surface of the limit block 6, and the other end of which is connected to the inner wall surface of the fixing groove 7;

[0040] One end of the elastic member 8 is welded to one end surface of the limit block 6, and the other end is welded to the inner wall surface of the fixing groove 7, so that the elastic member 8 can be relatively fixed. At the same time, the elastic member 8 can exert a force on the limit block 6, so that the limit block 6 limits one end of the rotating shaft to prevent the position of the rotating shaft from shifting;

[0041] The clamping assembly is arranged on the upper end surface of the fixing seat 1 and is used for clamping the bearing.

[0042] Specifically, the clamping assembly includes:

[0043] Two pairs of fixing blocks 9 are fixedly mounted on the upper end surface of the fixing base 1;

[0044] The screw rod 10 is rotatably mounted between a pair of fixed blocks 9;

[0045] A pair of connecting blocks 11, both ends of which are respectively threadedly connected to a pair of screw rods 10;

[0046] The pair of screw rods 10 are both bidirectional threaded rods, which can drive the pair of connecting blocks 11 to move closer to or away from each other when rotating;

[0047] The clamping blocks 12 are two in number and are respectively arranged on the end surfaces of a pair of connecting blocks 11 close to each other;

[0048] The clamping block 12 is an arc-shaped clamping block, one end face of which is welded to one end face of the connecting block 11 so as to be relatively fixed. Meanwhile, a pair of clamping blocks 12 can clamp the bearing to fix it.

[0049] Specifically, it also includes a pair of sprockets 13, the pair of sprockets 13 are respectively fixedly mounted on one end of a pair of screw rods 10 close to each other, and the pair of sprockets 13 are connected to each other through a chain 14;

[0050] Under the action of the chain 14, the pair of sprocket wheels 13 can be rotated at the same speed, and under the action of the pair of sprocket wheels 13, the pair of screw rods 10 can be rotated at the same speed at the same time.

[0051] Specifically, the lower end of the limiting block 6 is an inclined surface, which can facilitate the staff to insert one end of the rotating shaft into the placement groove 5.

[0052] Specifically, the elastic member 8 is a compression spring.

[0053] Working principle: First, the staff places the bearing on the upper end surface of the fixed seat 1. At this time, the staff rotates a screw 10. The rotation of one screw 10 drives a sprocket 13 and a chain 14 to rotate. The rotation of the chain 14 drives another sprocket 13 and another screw 10 to rotate at the same time. At this time, the rotation of one screw 10 drives a pair of connecting blocks 11 and a pair of clamping blocks 12 to move respectively, clamping and fixing the bearing to keep it fixed. At the same time, the staff inserts one end of the rotating shaft into the placement groove 5. At this time, the elastic member 8 applies a force to the limit block 6 so that it can clamp one end of the rotating shaft. At the same time, the staff docks the other end of the rotating shaft with the bearing. At this time, the staff starts the hydraulic cylinder 3. The telescopic end of the hydraulic cylinder 3 extends to drive the pressing block 4 to press the rotating shaft so that it is inserted into the bearing. At the same time, the groove can facilitate the insertion of one end of the rotating shaft, completing the press-fitting of the rotating shaft and the bearing, bringing convenience to people.

[0054] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0055] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0056] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0057] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0058] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A traction motor bearing press-fitting device, characterized in that: include; A fixing seat (1) having an upper end surface formed with a groove; A carrier frame (2) is arranged on the upper end surface of the fixing seat (1); A hydraulic cylinder (3) is fixedly mounted on the upper end surface of the carrier frame (2), and a telescopic end thereof passes through the upper wall of the carrier frame (2); A pressing block (4), the upper end surface of which is fixedly connected to the telescopic end of the hydraulic cylinder (3); A placement groove (5) formed on the lower end surface of the pressing block (4); Limit blocks (6), the number of which is two pairs, both of which are arranged in the placement groove (5); A fixing groove (7) is formed in the pressing block (4) and is communicated with the placement groove (5); An elastic member (8), one end of which is connected to one end surface of the limit block (6), and the other end of which is connected to the inner wall surface of the fixing groove (7); A clamping assembly is arranged on the upper end surface of the fixing seat (1) and is used for clamping the bearing.

2. A traction motor bearing press-fitting device according to claim 1, characterized in that: The clamping assembly comprises: Two pairs of fixing blocks (9) are fixedly mounted on the upper end surface of the fixing seat (1); A screw rod (10) is rotatably mounted between the pair of fixed blocks (9); A pair of connecting blocks (11), wherein both ends of the pair of connecting blocks (11) are respectively threadedly connected to the pair of screw rods (10); The clamping blocks (12) are two in number and are respectively arranged on the end surfaces of a pair of the connecting blocks (11) that are close to each other.

3. A traction motor bearing press-fitting device according to claim 2, characterized in that: It also comprises a pair of sprocket wheels (13), wherein the pair of sprocket wheels (13) are respectively fixedly mounted on one end of a pair of screw rods (10) close to each other, and the pair of sprocket wheels (13) are connected to each other via a chain (14).

4. A traction motor bearing press-fitting device according to claim 1, characterized in that: The lower end of the limit block (6) is an inclined surface.

5. A traction motor bearing press-fitting device according to claim 1, characterized in that: The elastic member (8) is a compression spring.

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