CN213828800U

CN213828800U - Portable bearing detacher

Info

Publication number: CN213828800U
Application number: CN202022907219.3U
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 puller, 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 the headgear and connects in the outside and the reciprocal anchorage of pneumatic cylinder extension piston front end, is connected through quick dismantlement structure between pneumatic cylinder quick-operation joint and the light weight quick-operation joint board, and the light weight quick-operation joint board passes through the connecting rod and dismantles the tooth with the bearing and is connected, and the tooth is dismantled to the bearing and is similar 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 frame-type 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: portable bearing puller, 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, the outside and the reciprocal anchorage at pneumatic cylinder extension piston front end are cup jointed to the pneumatic cylinder nipple, be connected through quick dismantlement structure between pneumatic cylinder nipple and the light weight fishplate bar, the light weight fishplate bar passes through the connecting rod and is connected with the bearing dismantlement tooth, the bearing dismantles the tooth and is similar to into 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.

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, be connected through quick detach structure between pneumatic cylinder quick-operation joint 4 and the light weight fishplate bar 5, light weight fishplate bar 5 is dismantled tooth 7 through connecting rod 6 and bearing and is connected, tooth 7 is dismantled to the bearing and is approximated into U-shaped structure.

When concrete implementation, quick detach structure is including the rotatory locking piece 8 that is located 4 front end edges of pneumatic cylinder quick-operation joint, rotatory locking piece 8 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 8, the outer wall department of pneumatic cylinder quick-operation joint 4 forms spacing bulge loop 9, form the clearance between spacing bulge loop 9 and the rotatory locking piece 8, quick detach structure is still including the pilot hole 10 that is located 5 departments of light weight quick-operation joint board, the shape of pilot hole 10 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 8 assemble into above-mentioned pilot hole 10 in, and rotatory locking.

In specific implementation, three connecting rods 6 are arranged between the light weight quick connection plate 5 and the bearing disassembly teeth 7. The three connecting rods 6 are distributed in a triangular shape in space.

In specific implementation, the light-weight quick connection plate 5 is distributed with hollowed-out portions 15 around the assembly hole 10, and spacing ribs 16 are formed between adjacent hollowed-out portions, so that the total mass is effectively controlled on the premise of ensuring the supporting strength.

In specific implementation, a guide chamfer 11 is formed at the inner edge of the U-shaped structure of the bearing detaching teeth 7, so that the bearing guiding process is smoother in the detaching 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.

The bearing tile removing of the core component comprises bearing removing teeth, a connecting rod and a light-weight quick connecting plate, and is matched with a one-way hydraulic oil cylinder to realize bearing removal, 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. Portable bearing puller, its 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, be connected through quick detach structure between pneumatic cylinder quick-operation joint (4) and light weight quick-operation joint board (5), light weight quick-operation joint board (5) are dismantled tooth (7) through connecting rod (6) and bearing and are connected, tooth (7) are dismantled to the bearing and are approximated into U-shaped structure.

2. The portable bearing remover as claimed in claim 1, wherein: quick detach structure is including rotatory locking piece (8) that are located pneumatic cylinder quick-operation joint (4) front end edge, rotatory locking piece (8) are outside protruding in pneumatic cylinder quick-operation joint (4) front end edge department, pneumatic cylinder quick-operation joint (4) front end edge department is provided with two symmetric distribution's rotatory locking piece (8), the outer wall department of pneumatic cylinder quick-operation joint (4) forms spacing bulge loop (9), form the clearance between spacing bulge loop (9) and rotatory locking piece (8), quick detach structure is still including pilot hole (10) that are located light weight quick-operation joint board (5) department, the shape of pilot hole (10) 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 (8) is gone into in above-mentioned pilot hole (10), and rotatory locking.

3. The portable bearing remover as claimed in claim 1, wherein: three connecting rods (6) are arranged between the light-weight quick connecting plate (5) and the bearing disassembling teeth (7).

4. The portable bearing remover as claimed in claim 1, wherein: a guide inclined cutting plane (11) is formed at the inner edge of the U-shaped structure of the bearing dismounting tooth (7).

5. The portable bearing remover as claimed in 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).