CN215748909U

CN215748909U - Disassembly tool for separating double-row tapered roller bearing sealing cover

Info

Publication number: CN215748909U
Application number: CN202121140915.4U
Authority: CN
Inventors: 曾庆波; 陈翔
Original assignee: Xiangyang Yifutan Railway Bearing Co ltd
Current assignee: Xiangyang Yifutan Railway Bearing Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-02-08
Anticipated expiration: 2031-05-26

Abstract

The utility model relates to the technical field of disassembly of double-row tapered roller bearings, and discloses a disassembly tool for separating a sealing cover of a double-row tapered roller bearing, which comprises an adjusting screw rod, a claw supporting component and a pointed claw component, the two ends of the adjusting screw rod are respectively provided with an upper thread and a lower thread, a smooth rod is arranged between the upper thread and the lower thread of the adjusting screw rod, the top end of the adjusting screw rod is detachably connected with a stress application rod, the lower end of the adjusting screw rod is in threaded connection with a claw supporting device component, the side edge of the claw supporting device component is butted with a pointed claw component in a sliding and clamping way, the smooth rod is rotatably connected with a thrust ball bearing, the thrust ball bearing is characterized in that a connector is fixed on the periphery of the thrust ball bearing, a connecting rod is hinged to the connector, and the lower end of the connecting rod is hinged to the pointed jaw assembly.

Description

Disassembly tool for separating double-row tapered roller bearing sealing cover

Technical Field

The utility model relates to the technical field of disassembly of double-row tapered roller bearings, in particular to a disassembly tool for separating a sealing cover of a double-row tapered roller bearing.

Background

When double-row tapered roller bearing used on the railway, two terminal surfaces of inner circle all were provided with the sealed cowling, and the dustproof of sealed cowling and the effect that prevents lubricating oil and reveal can prolong double-row tapered roller's live time, when the bearing need overhaul the maintenance, then need disassemble the sealed cowling from the bearing.

When dismantling the sealed cowling on the double-row tapered roller bearing at present, adopt the manual work to use the screwdriver to prize open more, this kind of operating means causes the accidental injury to the operator easily, when meetting the great bearing of volume, the operation degree of difficulty is very big, and secondly the screwdriver bumps roller and the holder in the touchhing bearing easily, damages the bearing.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a disassembling tool for separating a double-row tapered roller bearing sealing cover, which has the advantages of simple structure, convenience in operation, labor saving and no damage to a bearing.

The technical purpose of the utility model is realized by the following technical scheme: comprises an adjusting screw rod, a claw supporting device component and a pointed claw component, wherein the two ends of the adjusting screw rod are respectively provided with an upper thread and a lower thread, a smooth rod is arranged between the upper thread and the lower thread of the adjusting screw rod, the top end of the adjusting screw rod is detachably connected with a force adding rod, the lower end of the adjusting screw rod is in threaded connection with the claw supporting device component, the side edge of the claw supporting device component is butted, slidably clamped and connected with the pointed claw component, a thrust ball bearing is rotatably connected on the smooth rod, a coupler is fixed at the periphery of the thrust ball bearing, a coupling rod is hinged on the coupler, the lower end of the coupling rod is hinged with the pointed claw component, a support ring is sleeved outside the smooth slide rod in a sliding way, the upper surface of the support ring is provided with a limit component, the limit component comprises a central limit ring and a limit groove, the central limit ring is communicated with the limit groove, and is matched with the claw supporting device component, the limiting groove is matched with the connecting rod.

The utility model is further provided with: prop claw ware subassembly and prop claw and hollow cylinder fixed connection by right trapezoid and constitute, right trapezoid props claw quantity and is 3, and two adjacent right trapezoid prop the angle between the claw equal, the inside internal thread that is provided with of hollow cylinder, the internal thread constitutes threaded connection with adjusting screw's lower screw thread.

The utility model is further provided with: the tip clamping jaw assembly is formed by fixedly connecting a tip clamping block, a hollow square block and a belt trough square block in sequence, a right-angle trapezoidal groove which is in abutting sliding clamping connection with a right-angle trapezoidal supporting jaw in the jaw supporting device assembly is arranged at the center of the side edge of the belt trough square block, a hollow body in the hollow square block penetrates through the center of the hollow square block, the width of the hollow body and the width of the right-angle trapezoidal groove are the same and are arranged on the same straight line, a cross shaft penetrates through the other two side faces of the hollow square block, and the cross shaft is hinged to the lower end of the connecting rod.

The utility model is further provided with: the supporting device comprises a semi-split type positioning ring, wherein a supporting ring is fixed at the lower end of the inner wall of the semi-split type positioning ring, and an annular supporting leg is fixed at the lower end of the periphery of the semi-split type positioning ring.

The utility model is further provided with: including the extrusion lid, the extrusion lid comprises round cover plate and depression bar, depression bar quantity is 3, is fixed in the distance homogeneous phase of round cover plate circumference and two adjacent depression bars, the lower surface of apron is provided with the recess, the depression bar top is fixed with the lug with recess matched with.

The utility model is further provided with: the stress application rod is composed of a cylindrical nut and a cross rod, the cross rod penetrates through the cylindrical nut and fixes the cylindrical nut in the middle of the cross rod, the inner wall of the cylindrical nut is an internal thread, and the cylindrical nut and the upper thread of the adjusting screw form threaded connection.

The utility model is further provided with: the number of the pointed end jaw assemblies, the connecting rods and the limiting grooves is 3, and the angles between the adjacent pointed end jaw assemblies, the connecting rods and the limiting grooves are equal.

The utility model has the beneficial effects that:

1. before the disassembly operation, the tool is placed into a bearing to be disassembled, the tip clamping block of the tip clamping jaw component is abutted against the end faces of the inner ring and the middle spacer ring of the double-row tapered roller bearing, the lower end of the adjusting screw is in threaded connection with the hollow cylinder in the clamping jaw component, the right trapezoid supporting jaw fixedly connected to the side edge of the hollow cylinder and the right trapezoid groove in the tip clamping jaw component are abutted and slidably clamped, when the adjusting screw rotates, the right trapezoid supporting jaw is limited in the right trapezoid groove by the tip clamping jaw component, the right trapezoid supporting jaw is limited to rotate at the moment, so that the straight-line rising is realized, the rotary motion is converted into the straight-line motion to form a screw rod structure, the waist edge of the right trapezoid supporting jaw is continuously raised and abutted against the tip clamping jaw component for further strengthening, the force of the tip acting on the middle spacer ring is continuously increased, and the tip is further wedged into the end faces of the inner ring and the middle spacer ring, the whole pointed end clamping jaw assembly is stabilized in the bearing, and the structure constructed by the lead screw principle is ingenious in design, simple to operate and labor-saving.

2. Support ring up end is provided with central spacing ring and spacing groove, and central spacing ring and spacing groove intercommunication, further make right trapezoid on the claw ware subassembly of propping prop the claw and be restricted to remove in the spacing groove, it is rotatory to avoid right trapezoid to prop the claw, the effect of reinforcing screw, hoisting device's availability factor, the spacing groove can carry on spacingly to the extension rod simultaneously, hoisting device's stability, meanwhile, the support ring can be promoted or fall to the jack catch under the effect of external force on, moreover, the steam generator is simple in structure, and convenient for operation.

3. When the support ring falls to the upper end face of the pointed jaw assembly, the stress application rod can be detached due to threaded connection formed by the stress application rod and the upper threads of the adjusting screw rod, the extrusion cover is conveniently placed on the support ring, manpower is saved when the stress application rod rotates the adjusting screw rod, and the detachable structure facilitates subsequent pressurizing operation.

4. The support ring at the lower end of the inner wall of the semi-split type positioning ring is convenient for stably placing the support ring at the upper end of the double-row tapered roller bearing, the pointed end clamping jaw assembly is conveniently wedged into the end faces of the middle spacer ring and the inner ring, meanwhile, the annular supporting legs are arranged on the periphery of the semi-split type positioning ring, and the stability of the positioning ring placed on the double-row tapered roller bearing is enhanced.

5. Whole device design benefit uses skillfully to disassemble the enclosure on acting on the bearing, and simple structure uses manpower sparingly, does not harm the bearing simultaneously, and the practicality is strong.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a schematic sectional view of the present invention before it is mounted on a bearing and disassembled.

Fig. 3 is a schematic cross-sectional view of the bearing disassembled by the present invention.

In the figure, 1, adjusting screw; 2. a thrust ball bearing; 3. a coupler; 4. a coupling rod; 5. a claw holder assembly; 51. a hollow cylinder; 52. a right trapezoid supporting claw; 6. a pointed jaw assembly; 61. a pointed clamping block; 62. a hollow square block; 63. a grooved square; 64. a trapezoidal groove; 65. a horizontal axis; 7. a support ring; 71. a central spacing ring; 72. a limiting groove; 8. a semi-divided positioning ring; 81. a support ring; 82. an annular supporting leg; 9. pressing out the cover; 91. a circular pressing plate; 92. a pressure lever; 10. a stressing rod; 101. a cylindrical nut; 102. a cross bar.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

The embodiment of the tool for disassembling the double-row tapered roller bearing sealing cover comprises an adjusting screw rod 1, wherein the upper end of the adjusting screw rod 1 is connected with a stress application rod 10, the stress application rod 10 comprises a cylindrical nut 101 and a cross rod 102, the cylindrical nut 101 is in threaded connection with the adjusting screw rod 1, the stress application rod 10 is convenient to disassemble in the later period, a smooth rod of the adjusting screw rod 1 is connected with a thrust ball bearing 2, a connector 3 is fixed on the outer side of the thrust ball bearing 2, the upper end of a connecting rod 4 is hinged to the connector 3, the lower end of the connecting rod 4 is hinged to a cross shaft 65 penetrating through a hollow square block 62 in a tip jaw assembly 6, the number of the connecting rods 4 is 3, and a stable structure is formed.

As shown in fig. 1-2, the claw supporting device assembly 5 is composed of a right trapezoid supporting claw 52 and a hollow cylinder 51 which are fixedly connected, the number of the right trapezoid supporting claw 52 is 3, an internal thread is arranged inside the hollow cylinder 51 and is in threaded connection with the lower end of the adjusting screw 1, the pointed claw assembly 6 is composed of a pointed clamping block 61, a hollow block 62 and a grooved block 63 which are sequentially and fixedly connected, a right trapezoid groove 64 which is matched with the right trapezoid supporting claw 52 in the claw supporting device assembly 5 is arranged at the center of the side edge of the grooved block 63, a hollow body in the hollow block 62 penetrates through the center of the hollow block 62, the widths of the hollow body and the right trapezoid groove 64 are the same and are arranged on the same straight line, a cross shaft 65 penetrates through the other two side surfaces of the hollow block 62, the cross shaft 65 is hinged with the lower end of the connecting rod 4, when the adjusting screw 1 rotates, because the right trapezoid supporting claw 52 is limited in the right trapezoid groove 64 by the pointed clamping block assembly 6, right trapezoid props claw 52 this moment and is restricted rotation, thereby realize rectilinear rise, turn into rectilinear motion with rotary motion, form lead screw structure, prop claw 52's waist limit and constantly rise along with right trapezoid, it further strengthens to contradict with tip jack catch subassembly 6, make the power that the tip was used in on well space ring constantly strengthen, further wedge inner circle and well space ring's terminal surface, make whole tip jack catch subassembly 6 stabilize in the bearing, adopt the structure of lead screw principle structure, design benefit, the operation is simple, and the manpower is saved.

As shown in fig. 1-2, the upper surface of the support ring 7 is provided with a central limit ring 71 and a limit groove 72, the central limit ring 71 is communicated with the limit groove 72, the central limit ring 71 is matched with the claw spreader component 5, the limit groove 72 is matched with the connecting rod 4, when the support ring 7 is lifted to be parallel to the upper end of the bearing to be disassembled, the support ring 7 is stably supported by a support ring 81 placed on the inner wall of a semi-split type positioning ring 8 with the disassembled bearing, the two semi-split type positioning rings 8 strengthen the stability of the support ring 7, and the tip claw component 6 is conveniently wedged into the end surface between the inner ring and the middle separation ring after the support ring 7 is lifted, so that the subsequent operation is convenient.

As shown in fig. 3, extrusion lid 9 includes that lap and depression bar 92 constitute, depression bar 92 quantity is 3, the lower surface of lap is provided with the recess, depression bar 92 top is fixed with the lug with recess matched with, 3 depression bar 92 correspondences of extrusion lid 9 are placed in the top of tip jaw assembly 6, utilize outside pneumatic cylinder as power, act on the lap, the terminal surface that makes inner circle and well spacer ring constantly wedged to the tip of tip fixture block 61, the effort of tip fixture block 61 constantly increases at any time, the sealed cowling is disassembled, the operation is accurate, safety and labor saving, guarantee to wait to disassemble not destroyed of bearing, the practicality of device promotes.

A disintegration frock theory of operation for separating double-row tapered roller bearing sealed cowling:

the disassembly tool is placed into a bearing to be disassembled, the support ring 7 is lifted to be parallel to the upper end face of the bearing, the semi-split positioning ring 8 is stably placed at the upper end of the bearing, the support ring 7 is placed on the support ring 81 on the inner wall of the semi-split positioning ring 8, the support ring 7 is stably placed on the bearing at the moment, the screw is rotated to slowly rise at the moment, the pointed end fixture block 61 is clamped into the end faces of the inner ring of the bearing and the middle spacer ring, and the disassembly tool is assembled in the bearing.

Clockwise rotation power application pole 10, because right trapezoid props claw 52 and is restricted in right trapezoid groove 64 by tip jack catch subassembly 6, right trapezoid props claw 52 this moment and is restricted rotatoryly, thereby realize rectilinear ascension, turn into linear motion with rotary motion, form the lead screw structure, along with the waist limit of right trapezoid props claw 52 constantly rises, it further strengthens to contradict with tip jack catch subassembly 6, make the tip be used in the continuous increasement of the power on well spacer ring, further wedge the terminal surface of inner circle and well spacer ring, make whole tip jack catch subassembly 6 stabilize in the bearing, the screw principle is used to advantage, change rotary motion to linear motion, long base constantly extrudees tip jack catch subassembly 6 makes it act on the bearing along with right trapezoid rises, moreover, the steam generator is simple in structure, and labor-saving in operation.

The cylindrical nut 101 of the forcing rod 10 is in threaded connection with the adjusting screw rod 1, the forcing rod 10 is disassembled, the semi-split type positioning ring 8 is disassembled from the support ring 7, the central limiting ring 71 and the limiting groove 72 on the support ring 7 fall to the upper end face of the tip clamping jaw assembly 6 along the connecting rod 4 and the clamping jaw assembly 5, the extrusion cover 9 is placed on the support ring 7 at the moment, 3 compression rods 92 of the extrusion cover 9 are correspondingly placed above the tip clamping jaw assembly 6, an external hydraulic cylinder is used as power and acts on the circular cover plate, the tip of the tip clamping block 61 is enabled to be wedged into the end faces of the inner ring and the middle spacer ring continuously, the acting force of the tip clamping block 61 is increased continuously at any time, and the sealing cover is disassembled.

Claims

1. The utility model provides a frock of disintegrating for separating biserial tapered roller bearing sealed cowling, its characterized in that includes adjusting screw (1), props claw ware subassembly (5) and tip jack catch subassembly (6), adjusting screw (1) both ends are provided with screw thread and lower screw thread respectively, be smooth pole between the upper screw thread of adjusting screw (1) and the lower screw thread, the top of adjusting screw (1) can be dismantled and be connected with stress pole (10), adjusting screw (1) lower extreme threaded connection has props claw ware subassembly (5), prop claw ware subassembly (5) side conflict slip joint and have tip jack catch subassembly (6), it has thrust ball bearing (2) to rotate on the smooth pole, thrust ball bearing (2) periphery is fixed with connector (3), articulated on connector (3) have connecting rod (4), connecting rod (4) lower extreme and tip jack catch subassembly (6) are articulated, the smooth slide bar outer sliding sleeve is equipped with support ring (7), the upper surface of support ring (7) is provided with spacing subassembly, spacing subassembly includes central spacing ring (71) and spacing groove (72), central spacing ring (71) and spacing groove (72) intercommunication, central spacing ring (71) with prop claw ware subassembly (5) and cooperate, spacing groove (72) cooperate with connecting rod (4).

2. The disassembly tool for separating the double-row tapered roller bearing seal cover according to claim 1, characterized in that: prop claw ware subassembly (5) and prop claw (52) and hollow cylinder (51) fixed connection by right trapezoid and constitute, right trapezoid props claw (52) quantity and is 3, and two adjacent right trapezoid prop the angle between claw (52) and all equal, hollow cylinder (51) inside is provided with the internal thread, the internal thread constitutes threaded connection with the lower screw thread of adjusting screw (1).

3. The disassembly tool for separating the double-row tapered roller bearing seal cover according to claim 2, characterized in that: the tip jaw assembly (6) is formed by fixedly connecting a tip clamping block (61), a hollow square block (62) and a groove square block (63) in sequence, a right-angle trapezoidal groove (64) which is in butt sliding clamping connection with a right-angle trapezoidal supporting claw (52) in the claw supporting device assembly (5) is formed in the center of the side edge of the groove square block (63), a hollow body in the hollow square block (62) penetrates through the center of the hollow square block (62), the widths of the hollow body and the right-angle trapezoidal groove (64) are the same and are arranged on the same straight line, a cross shaft (65) penetrates through two other side faces of the hollow square block (62), and the cross shaft (65) is hinged to the lower end of the connecting rod (4).

4. The disassembly tool for separating the double-row tapered roller bearing seal cover according to claim 1, characterized in that: the supporting device comprises a semi-split positioning ring (8), wherein a supporting ring (81) is fixed at the lower end of the inner wall of the semi-split positioning ring (8), and an annular supporting leg (82) is fixed at the lower end of the periphery of the semi-split positioning ring (8).

5. The disassembly tool for separating the double-row tapered roller bearing seal cover according to claim 1, characterized in that: including extrusion lid (9), extrusion lid (9) comprise dome sheet and depression bar (92), depression bar (92) quantity is 3, is fixed in dome sheet circumferential edge and the equal distance of two adjacent depression bars (92), the lower surface of apron is provided with the recess, depression bar (92) top is fixed with the lug with recess matched with.

6. The disassembly tool for separating the double-row tapered roller bearing seal cover according to claim 1, characterized in that: the stress application rod (10) is composed of a cylindrical nut (101) and a cross rod (102), the cross rod (102) penetrates through the cylindrical nut (101) and fixes the cylindrical nut (101) in the middle of the cross rod (102), the inner wall of the cylindrical nut (101) is an internal thread, and the upper threads of the cylindrical nut (101) and the adjusting screw (1) form threaded connection.

7. The disassembly tool for separating the double-row tapered roller bearing seal cover according to claim 6, wherein: the number of the tip jaw assemblies (6), the connecting rods (4) and the limiting grooves (72) is 3, and the angles between the adjacent tip jaw assemblies (6), the connecting rods (4) and the limiting grooves (72) are equal.