CN218905228U

CN218905228U - RV reduction gear main bearing outer lane dismounting device

Info

Publication number: CN218905228U
Application number: CN202223048376.9U
Authority: CN
Inventors: 乐佳伟
Original assignee: Shanghai Yigong Precision Technology Co ltd
Current assignee: Shanghai Yigong Precision Technology Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-04-25
Anticipated expiration: 2032-11-15

Abstract

The utility model discloses a disassembly device for an outer ring of a main bearing of an RV reducer, and belongs to the technical field of disassembly devices for outer rings of bearings. Comprises a cross beam, a connecting rod, a claw, a screw rod and a screw sleeve; the middle part of the beam penetrates through and is vertically connected with a connecting rod, grooves are respectively formed in two sides of the beam, clamping claws are respectively arranged on two sides of the beam, and each clamping claw slides in a corresponding groove range; the bottom of the connecting rod penetrates through and is vertically connected with a screw rod, two ends of the screw rod are respectively connected with a threaded sleeve in a threaded mode, and the threaded sleeves are used for propping up and limiting the clamping jaws. The utility model provides a novel disassembling device for the outer ring of the main bearing of an RV reducer, which is characterized in that a claw is manufactured in a matched mode with a shell, and the problem that a general puller cannot grasp the bearing is solved. The U-shaped groove through the crossbeam is matched with the clamping jaw, so that the clamping jaw can only axially move, and the stability of the tool in use is enhanced.

Description

RV reduction gear main bearing outer lane dismounting device

Technical Field

The utility model relates to a disassembly device for an outer ring of a main bearing of an RV reducer, and belongs to the technical field of disassembly devices for outer rings of bearings.

Background

The RV speed reducer consists of a front stage of a planetary gear speed reducer and a rear stage of a cycloidal pin gear speed reducer, has compact structure and large transmission ratio, and is one of the most commonly used speed reducers under certain conditions.

The main bearing outer ring is often disassembled in the repairing process of the RV reducer, and only the pin hole part on the shell can be grabbed because the main bearing outer ring is arranged inside the shell, and the general three-jaw puller cannot be used because the general three-jaw puller has no proper grabbing point. If the bearing outer ring is knocked out from the back surface by a pin-knocking rod through a pin hole, there is a risk of damaging the housing and the bearing outer ring.

Disclosure of Invention

Aiming at the technical problems, the utility model aims to provide the device for disassembling the outer ring of the main bearing of the RV reducer, which solves the defect that the traditional disassembling tool can not conveniently, timely and safely disassemble the bearing.

The technical problems to be solved by the utility model are realized by adopting the following technical scheme:

the utility model provides a RV reduction gear main bearing outer lane dismounting device, includes crossbeam, connecting rod, jack catch, screw rod and swivel nut;

the middle part of the beam penetrates through and is vertically connected with a connecting rod, grooves are respectively formed in two sides of the beam, clamping claws are respectively arranged on two sides of the beam, and each clamping claw slides in a corresponding groove range;

the bottom of the connecting rod penetrates through and is vertically connected with a screw rod, two ends of the screw rod are respectively connected with a threaded sleeve in a threaded mode, and the threaded sleeves are used for propping up and limiting the clamping jaws.

As a preferred example, the jack catch includes the axle sleeve of upper end and the latch of lower extreme, and the latch can detain into casing needle round pin hole and pull the bearing outer lane bottom, is provided with the through-hole on the axle sleeve, and the axle sleeve of every jack catch cup joints respectively in the crossbeam both sides, inserts the through-hole and the fluting through the cylindric lock and installs the jack catch respectively on the crossbeam.

As a preferred example, the upper end of the connecting rod is also provided with a handle.

As a preferable example, the upper end part of the connecting rod is provided with external threads, a screw hole is formed in the handle, and the handle is connected with the connecting rod through threads.

As a preferred example, the portion of the connecting rod between the handle and the cross beam is sleeved with a balancing weight.

The beneficial effects of the utility model are as follows:

(1) The utility model provides a novel disassembling device for the outer ring of the main bearing of an RV reducer, which is characterized in that a claw is manufactured in a matched mode with a shell, and the problem that a general puller cannot grasp the bearing is solved.

(2) The U-shaped groove through the crossbeam is matched with the clamping jaw, so that the clamping jaw can only axially move, and the stability of the tool in use is enhanced.

(3) The clamping jaw is fixed by using the rotary screw sleeve, so that the rotary screw sleeve is convenient to disassemble and assemble.

(4) The structure that the balancing weight is matched with the handle is adopted, and the bearing outer ring is directly pulled out by utilizing the principle similar to a pin puller, so that the operation is simpler, more convenient and quicker.

Drawings

FIG. 1 is a schematic view of an exploded view of a dismantling device according to an embodiment of the present utility model;

fig. 2 is a schematic cross-sectional view of a disassembling device according to an embodiment of the utility model.

In the figure:

1. a handle; 101. a grip portion; 102. a stop portion; 103. a screw hole;

2. balancing weight;

3. a connecting rod; 301. an upper end portion; 302. a lower end portion; 303. a limit part;

4. a cross beam; 401. a U-shaped groove;

5. a claw; 501. a shaft sleeve; 502. a through hole; 503. latch teeth;

6. a cylindrical pin;

7. a screw sleeve;

8. a screw;

9. a housing;

10. and an outer ring of the main bearing.

Detailed Description

The utility model will be further described with reference to the following detailed drawings and examples, in order to make the technical means, the creation features, the achievement of the objects and the effects of the utility model easily understood.

Examples:

as shown in fig. 1, the embodiment of the utility model provides a disassembly device for an outer ring 10 of a main bearing of an RV reducer, which comprises a handle 1, a balancing weight 2, a connecting rod 3, a cross beam 4, a claw 5, a cylindrical pin 6, a threaded sleeve 7 and a threaded rod 8.

The middle part of the cross beam 4 penetrates through and is vertically connected with the connecting rod 3, the connecting rod 3 comprises an upper end 301, a lower end 302 and a limiting part 303, the limiting part 303 is arranged between the upper end 301 and the lower end 302, the cross beam 4 is limited at the upper end 301 of the connecting rod 3 by the limiting part 303, two sides of the cross beam 4 are respectively provided with a strip-shaped U-shaped groove 401, two sides of the cross beam 4 are respectively provided with a clamping jaw 5, and each side of the clamping jaw 5 slides in a corresponding slotting range.

The lower end 302 of the connecting rod 3 penetrates through and is vertically connected with a screw rod 8, two ends of the screw rod 8 are respectively connected with a threaded sleeve 7 in a threaded mode, and the threaded sleeve 7 is used for abutting against the limiting clamping jaw 5.

The jack catch 5 includes the axle sleeve 501 of upper end and the latch 503 of lower extreme, and latch 503 can detain into casing 9 needle round pin hole and pull the bearing outer lane bottom, is provided with through-hole 502 on the axle sleeve 501, and the axle sleeve 501 of every jack catch 5 cup joints respectively in crossbeam 4 both sides, inserts through-hole 502 and fluting through cylindric lock 6 and installs jack catch 5 respectively on crossbeam 4.

The upper end 301 of the connecting rod 3 is further provided with a handle 1, the handle 1 comprises a holding part 101 and a stop part 102 from top to bottom, and the diameter of the stop part 102 is larger than that of the balancing weight 2.

The upper end 301 of the connecting rod 3 is provided with external threads, the inside of the handle 1 is provided with a screw hole 103, and the handle 1 is connected with the connecting rod 3 through threads.

The balancing weight 2 is sleeved on the connecting rod 3 part between the handle 1 and the cross beam 4, and the balancing weight 2 is limited in position by the stop part 102 of the handle 1.

The utility model has the beneficial effects that:

the claw 5 is matched with the bearing shell 9 to be disassembled for manufacturing, so that the problem that the general puller cannot grasp the bearing is solved. The U-shaped groove 401 on the cross beam 4 is matched with the clamping jaw 5, so that the clamping jaw 5 can only axially move, and the stability of the tool in use is enhanced. The clamping jaw 5 is fixed by using the mode of rotating the threaded sleeve 7, so that the clamping jaw is convenient to disassemble and assemble. The outer ring of the bearing is directly pulled out by utilizing the principle similar to a pin puller, so that the operation is simpler, more convenient and quicker.

Working principle:

as shown in fig. 2, the two threaded sleeves 7 are screwed inwards to be folded, the two clamping claws 5 are put into the shell 9 after being folded inwards, the clamping claws 5 are respectively opened to be aligned with pin holes of the shell 9 and buckle the bottom of the main bearing outer ring 10, the two threaded sleeves 7 are rotated outwards to fix the clamping claws 5 on the main bearing outer ring 10, one hand grabs the handle 1 to fix the whole device, the other hand is used for controlling the balancing weight 2 to be pulled upwards, and the inertial force is used for bringing the bearing outer ring out. Aiming at the speed reducers with different models, the main bearing outer ring 10 with different models can be disassembled only by manufacturing different clamping claws 5. The utility model can be widely used and has strong universality.

The foregoing description and shows the general principles, features and advantages of the utility model. It will be appreciated by persons skilled in the art that the present utility model is not limited to the embodiments described above, but is capable of numerous variations and modifications without departing from the essential spirit and scope of the utility model, which are intended to fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. RV reduction gear main bearing outer lane dismounting device, characterized in that includes:

the device comprises a cross beam (4), a connecting rod (3), a claw (5), a screw (8) and a screw sleeve (7);

the beam (4) is vertically connected with a connecting rod (3), grooves are respectively formed in two sides of the beam (4), clamping claws (5) are respectively arranged on two sides of the beam (4), and each clamping claw (5) slides in a corresponding groove range;

the connecting rod (3) is vertically connected with a screw rod (8), two ends of the screw rod (8) are respectively connected with a screw sleeve (7) in a screwed mode, and the screw sleeve (7) is used for limiting movement of the clamping jaw (5).

2. The device for disassembling the main bearing outer ring of the RV reducer according to claim 1, wherein the clamping jaws (5) comprise shaft sleeves (501) at the upper end and clamping teeth (503) at the lower end, through holes (502) are formed in the shaft sleeves (501), the shaft sleeves (501) of each clamping jaw (5) are respectively sleeved on two sides of the cross beam (4), and the clamping jaws (5) are respectively installed on the cross beam (4) through the insertion of cylindrical pins (6) into the through holes (502) and the slotting.

3. The RV reducer main bearing outer ring dismounting device according to claim 1, wherein the upper end (301) of the connecting rod (3) is further provided with a handle (1).

4. The device for disassembling the main bearing outer ring of the RV reducer according to claim 3, wherein the upper end portion (301) of the connecting rod (3) is provided with external threads, a screw hole (103) is formed in the handle (1), and the handle (1) is connected with the connecting rod (3) through threads.

5. A main bearing outer ring disassembling device of an RV reducer according to claim 3, characterized in that the portion of the connecting rod (3) between the handle (1) and the cross beam (4) is sheathed with a counterweight (2).