CN213828801U

CN213828801U - Portable bearing detacher

Info

Publication number: CN213828801U
Application number: CN202022907224.4U
Authority: CN
Inventors: 翟恒亮; 徐资翔; 徐慈谦
Original assignee: Danuoer Electric Group Co ltd
Current assignee: Danuoer Electric Group Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-07-30
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a lightweight bearing detacher, including one-way hydraulic cylinder, pneumatic cylinder piston and pneumatic cylinder extension piston connection in the one-way hydraulic cylinder, the rear end of pneumatic cylinder extension piston is connected with the front end of pneumatic cylinder piston, and the pneumatic cylinder meets headgear in the outside and the reciprocal anchorage of pneumatic cylinder extension piston front end, and through quick detach structural connection between the pneumatic cylinder quick-operation joint and the integral type bearing are torn open the tile, and the inner chamber that the tile was torn open to the integral type bearing is the cavity form, and the inner chamber cross-section that the tile was torn open to the integral type bearing is approximate to U-shaped structure. The mobility of the dismounting device of the rail transit vehicle bearing is improved, the total mass of core devices is only about 10-20 kilograms, compared with the portability of the traditional puller of about 300 kilograms, the dismounting device of the rail transit vehicle bearing is improved qualitatively, and can be moved by a single person and mounted on any vehicle in a line, so that the mobility and the portability are improved remarkably.

Description

Portable bearing detacher

Technical Field

The utility model belongs to the technical field of bearing extracting tool's technique and specifically relates to a lightweight bearing detacher, in particular to its mechanical connection structure.

Background

The existing bearing dismounting device is often a three-claw puller or a two-claw puller, the weight of the existing bearing dismounting device is 300 kilograms or more when the existing bearing dismounting device is applied to the field of trains or rail transit, and the two-claw puller cannot bear the stress strength generally.

The prior art has the following problems:

1. when the bearing is used for disassembling the hub bearing of the train, the weight is about 300kg, the weight is extremely high, and the conventional product cannot bear the acceptance strength.

2. The product has larger volume and cannot be carried by a single person at will.

3. A hydraulic bearing draws horse, takes up an area of greatly, can only have a wheel hub once to dismantle the bearing, dismantles the bearing moreover and must at first disassemble rail vehicle wheel hub, sends into special factory building and environment and dismantles.

Disclosure of Invention

An object of the utility model is to provide a lightweight bearing puller, lightweight and portable design can effectively provide the bearing and dismantle the required power take off of process, and semi-circular bearing is torn open the tile and can be provided fine adaptability, has overcome the shortcoming and not enough that exist among the prior art.

In order to realize the purpose, the technical scheme of the utility model is that: the utility model provides a portable bearing detacher, includes one-way hydraulic cylinder, pneumatic cylinder piston and pneumatic cylinder extension piston connection in the one-way hydraulic cylinder, the rear end of pneumatic cylinder extension piston is connected with the front end of pneumatic cylinder piston, the pneumatic cylinder quick-operation joint cup joints in the outside and the reciprocal anchorage of pneumatic cylinder extension piston front end, the pneumatic cylinder quick-operation joint is connected through quick detach structure with the integral type bearing between tearing open the tile, the inner chamber that the tile was torn open to the integral type bearing is the cavity form, the inner chamber cross-section that the tile was torn open to the integral type bearing is approximate to become U-shaped structure.

The utility model discloses a lightweight bearing puller, technological effect: 1. the mobility of the dismounting device of the rail transit vehicle bearing is improved, the total mass of core components is only about 10-20 kilograms, compared with the portability of the traditional puller of about 300 kilograms, the dismounting device of the rail transit vehicle bearing is improved qualitatively, and can be moved by a single person and arranged on any vehicle in a line, so that the mobility and the portability are improved remarkably; 2. the efficiency of maintenance of the rail transit vehicle is improved, the bearing can be disassembled at any time on the premise that the vehicle is not required to be disassembled and enters a station, and the operation efficiency of the rail transit vehicle is greatly improved; 3. the comprehensive cost of rail transit is reduced, the operation benefit of the vehicle is improved, and because the vehicle does not need to be repaired when entering a station, a large amount of maintenance time is saved, the normal running time of the vehicle is prolonged, and the income is increased; 4. the equipment cost of rail transit guarantee is reduced, and the BOM cost of the scheme is greatly lower than that of a hydraulic puller with the weight of about 300 kg.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an explosion diagram of the present invention.

Fig. 3 is a perspective view of the present invention.

Fig. 4 is a sectional view of the present invention.

Fig. 5 is the schematic view of the structure of the utility model for quick detachment.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the present invention, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The utility model discloses a lightweight bearing puller, as shown in figure 1, it is different from prior art and lies in: including one-way hydraulic cylinder 1, pneumatic cylinder piston 2 in one-way hydraulic cylinder 1 is connected with pneumatic cylinder extension piston 3, the rear end of pneumatic cylinder extension piston 3 is connected with the front end of pneumatic cylinder piston 2, pneumatic cylinder quick-operation joint 4 cup joints in the outside and the reciprocal anchorage of pneumatic cylinder extension piston 3 front end, pneumatic cylinder quick-operation joint 4 and integral type bearing are torn open and are connected through quick detach structure between the tile 5, the inner chamber that the tile 5 was torn open to the integral type bearing is the cavity form, the inner chamber cross-section that the tile 5 was torn open to the integral type bearing is approximate to U-shaped structure.

When concrete implementation, the quick detach structure is including the rotatory locking piece 6 that is located 4 front end edges of pneumatic cylinder quick-operation joint, rotatory locking piece 6 is outside protruding in 4 front end edge departments of pneumatic cylinder quick-operation joint, 4 front end edge departments of pneumatic cylinder quick-operation joint are provided with two symmetric distribution's rotatory locking piece 6, the outer wall department of pneumatic cylinder quick-operation joint 4 forms spacing bulge loop 7, form clearance 8 between spacing bulge loop 7 and the rotatory locking piece 6, the quick detach structure is still including being located the pilot hole 9 that the tile 5 was torn open to the integral type bearing, the shape of pilot hole 9 cooperatees with 4 front end shapes of above-mentioned pneumatic cylinder quick-operation joint, 4 front ends of pneumatic cylinder quick-operation joint that have rotatory locking piece 6 assemble into in above-mentioned pilot hole 9, and rotatory locking.

In specific implementation, the integrated bearing dismounting tile 5 is composed of a semicircular arc bottom plate 10 and a back plate 11, the back plate 11 is arranged at the rear end of the semicircular arc bottom plate 10, the assembling hole 9 is formed in the back plate 11, and an upward protruding flange 15 is formed at the edge of the front end of the semicircular arc bottom plate 10.

In practical application, the guide chamfer 16 is formed at the flange 15, so that the bearing guiding process is smoother in the dismounting process.

In specific implementation, the front and the back of the outer wall of the unidirectional hydraulic oil cylinder 1 are respectively provided with a handle mounting ring 12, a handle 13 is arranged between the two handle mounting rings 12, and two ends of the handle 13 are connected with the handle mounting rings 12 through handle bolts 14.

In specific implementation, at least three convex strips 17 are axially distributed on the inner wall of the semicircular arc bottom plate 10, two of the convex strips are distributed on two sides of the inner wall of the semicircular arc bottom plate 10, and the other convex strip is distributed at the bottom of the inner wall of the semicircular arc bottom plate 10.

The bearing of the core component related to the present case is disassembled and the bearing is disassembled by matching with the one-way hydraulic oil cylinder, and the specific use principle is as follows: firstly, mounting a semi-enclosed bearing split bush on a bearing for emptying peripheral accessories, then installing a hydraulic cylinder quick connector module (comprising a hydraulic cylinder extension piston, a hydraulic cylinder, a handle and a handle mounting ring) into an assembly hole of the bearing split bush and rotating by 90 degrees, and then starting a hydraulic source; at the moment, the hydraulic extension piston is pushed forwards, the bearing is disassembled from the bush and the bearing clamped in the bearing is moved backwards relatively, the bearing is pulled off from the shaft under the hydraulic thrust of more than 10 tons, and the disassembly work of the bearing is completed.

In specific implementation, the one-way hydraulic oil cylinder 1 is a German YELA-YS-15-250 type one-way spring contraction hydraulic cylinder with technical parameters of 15 tons and a 250mm stroke, and a hydraulic station must be matched with the one-way spring contraction hydraulic cylinder.

In specific implementation, the bearing split bush is designed for disassembling a bearing of a wheel hub of a railway wagon, and is compatible with bearings with inner diameters of 150mm, 130mm and 100 mm.

The foregoing is a more detailed description of the invention, taken in conjunction with the accompanying preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described above. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. The utility model provides a lightweight bearing puller which characterized in that: including one-way hydraulic cylinder (1), pneumatic cylinder piston (2) in one-way hydraulic cylinder (1) are connected with pneumatic cylinder extension piston (3), the rear end of pneumatic cylinder extension piston (3) is connected with the front end of pneumatic cylinder piston (2), pneumatic cylinder quick-operation joint (4) cup joint in the outside and the reciprocal anchorage of pneumatic cylinder extension piston (3) front end, pneumatic cylinder quick-operation joint (4) are torn open through quick detach structural connection between tile (5) with the integral type bearing, the inner chamber that tile (5) were torn open to the integral type bearing is the cavity form, the inner chamber cross-section that tile (5) were torn open to the integral type bearing is approximate to into U-shaped structure.

2. A portable bearing remover according to claim 1, wherein: quick detach structure is including rotatory locking piece (6) that are located pneumatic cylinder quick-operation joint (4) front end edge, rotatory locking piece (6) are outside protruding in pneumatic cylinder quick-operation joint (4) front end edge, pneumatic cylinder quick-operation joint (4) front end edge is provided with two symmetric distribution's rotatory locking piece (6), the outer wall department of pneumatic cylinder quick-operation joint (4) forms spacing bulge loop (7), form clearance (8) between spacing bulge loop (7) and rotatory locking piece (6), quick detach structure is still including being located the pilot hole (9) that integral type bearing torn open tile (5) and locate, the shape of pilot hole (9) cooperatees with above-mentioned pneumatic cylinder quick-operation joint (4) front end shape, pneumatic cylinder quick-operation joint (4) front end assembly that has rotatory locking piece (6) goes into in above-mentioned pilot hole (9), and rotatory locking.

3. A portable bearing remover according to claim 2, wherein: the integrated bearing tile dismounting device is characterized in that the integrated bearing tile dismounting device (5) is composed of a semicircular arc bottom plate (10) and a back plate (11), the back end of the semicircular arc bottom plate (10) is provided with the back plate (11), the assembling hole (9) is formed in the position of the back plate (11), and the edge of the front end of the semicircular arc bottom plate (10) forms an upward protruding flange (15).

4. A portable bearing remover according to claim 3, wherein: a guide chamfer (16) is formed at the flange (15).

5. A portable bearing remover according to claim 1, wherein: the front and the back of the outer wall of the one-way hydraulic oil cylinder (1) are respectively provided with a handle mounting ring (12), a handle (13) is arranged between the two handle mounting rings (12), and two ends of the handle (13) are connected with the handle mounting rings (12) through handle bolts (14).