CN208847478U - For detecting the pulling force fixture of retainer tensile strength - Google Patents

Abstract

The utility model discloses a kind of for detecting the pulling force fixture of retainer tensile strength, including positioning plate and two symmetrically arranged pull rods, the positioning plate is separately positioned on the two sides of pull rod, the pull rod both ends are provided with locating rod, the locating rod passes through positioning plate and is arranged to form the limit to positioning plate rotation, and the location hole for wearing pin rod is provided on the positioning plate.It can be effectively adapted to the retainer of different model, improve detection accuracy.

Description

For detecting the pulling force fixture of retainer tensile strength

Technical field

It is especially a kind of for detecting the pulling force of retainer tensile strength the utility model relates to Bearing testing technical field Fixture.

Background technique

Retainer, i.e. bearing retainer, also known as bearing cage refer to and partly wrap up all or part of rolling element, and with The bearing parts of movement usually also guide and rolling element and hold it in bearing, rolling bearing exists to separation roller When work, when especially load is complicated and high speed rotation, retainer will bear very big centrifugal force, shock and vibration, retainer There are biggish sliding frictions between rolling element, it is therefore desirable to measure the tensile strength of retainer, but existing detection is kept The fixture of frame tensile strength mostly uses greatly prong fixture, and prong fixture generally includes symmetrically arranged traction piece, two traction pieces Setting up and down or left and right settings, two traction pieces opening are oppositely arranged, location hole are provided on opening sidewalls, is worn in location hole There is pin rod, pad sets half round steeper in retainer to be measured, and the retainer upper half to be measured is arranged in the opening of upper guiding piece, lower half It is arranged in the opening of lower traction piece, pin rod is arranged across half round steeper, the fixation to retainer is formed, but it is such If the prong entrance of fixture designs very wide, when surveying small size retainer, retainer is not easy centerlock, Leading to test result, there are biggish deviations.If prong design is very narrow, large-sized retainer cannot be surveyed.So this Existing fixture cannot freely be adjusted according to the size of retainer, and various types of retainers need to be equipped with how attached fixture, will cause into This waste.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a kind of pulling force folder for detecting retainer tensile strength Tool can effectively be adapted to the retainer of different model, improve detection accuracy.

The utility model provide it is a kind of for detecting the pulling force fixture of retainer tensile strength, including positioning plate and two it is right Claim the pull rod of setting, the positioning plate is separately positioned on the two sides of pull rod, and the pull rod both ends are provided with locating rod, the positioning Bar passes through positioning plate and is arranged to form the limit to positioning plate rotation, and the positioning for wearing pin rod is provided on the positioning plate Hole.

The beneficial effect being arranged in this way is: using the above scheme, by the cooperation of locating rod and positioning plate, realizing to difference Retainer to be measured is effectively maintained at middle position by the adaptation on size retainer width, is improved detection accuracy, is not needed simultaneously Subsidiary fixture, has been turned up detection efficiency, has reduced the production cost of subsidiary fixture.

The utility model is further arranged on the positioning plate that positioning plate length direction is provided with slippage slot, described fixed Mounting plate and lock screw are provided on the plate of position, the side of positioning plate is arranged in the mounting plate, and the lock screw setting exists The other side of positioning plate, is provided with lock hole on the mounting plate, the lock screw bar portion pass through slippage slot be arranged and with lock To determine hole to be threadedly engaged, the lock screw and lock hole are threadedly engaged the clamping to form mounting plate and lock screw to positioning plate, The location hole setting on a mounting board, corresponds to position of positioning hole setting and uses locating slot on the positioning plate.

The beneficial effect being arranged in this way is: using the above scheme, by the mounting plate that can be slid, while location hole is arranged On a mounting board, since retainer size to be measured is different, the size of required sleeper is also different, causes that sleeper position is fixed Pin rod height and position be also not quite similar, mounting plate by sliding positioning, guarantee pin rod and sleeper connection, mounting plate slide Positioning plate is clamped by lock screw afterwards, realizes the fixation of installation Board position, so that pin rod can accurately be connect with sleeper, Using effect is improved, guarantees the accuracy of detection, while the combination of this mounting plate and lock screw, structure is simple, is conducive to real Existing, it is convenient to operate, and as scale can preferably be arranged on the positioning plate of two sides, guarantees being at the same level for the position of two sides mounting plate, Guarantee connection effect, the accuracy of detection is further turned up.

The utility model is further arranged to the tapered setting of the location hole, wider by one in location hole on the mounting plate The circumferential direction at end is provided with adjusting ring, split type retaining sleeve is movably set in the location hole, the split type retaining sleeve is in cone Shape is arranged and is adapted with location hole, and the perforation for clamping pin bar is axially formed in the split type retaining sleeve, described It adjusts in ring and is threadedly engaged the press part slid in location hole for the split type retaining sleeve of ejection, opened up on the press part There is the aperture passed through for pin rod.

The beneficial effect being arranged in this way is: using the above scheme, press part is threadedly engaged with ring is adjusted, and is supported in rotation process Press split type retaining sleeve, split type retaining sleeve is movable into location hole, due to the tapered setting of location hole and with split type clamping Set shape is adapted, and split type retaining sleeve, which is pressurized, to be collapsed, to clamp to the pin rod in perforation, to realize different sizes Pin rod clamping, and clamp close and firm, improve the Adapter Property of the cubing.

It includes that grip block is arranged at least 3 block gaps that the utility model, which is further arranged to the split type retaining sleeve, described Grip block includes leptoprosopy and compresses face for what is compressed by press part, and the leptoprosopy, which is less than, compresses face setting, it is described compress face and Pass through the first joint face, the second joint face and the contact inclined-plane connection contacted with location hole inner wall, the contact between leptoprosopy The arc-shaped setting in inclined-plane is simultaneously adapted with location hole inner wall radian, on the grip block the on the first joint face and adjacent grip block It is provided between two joint faces and compresses spring for grip block to be pressed on location hole inner wall.

The beneficial effect being arranged in this way is: using the above scheme, grip block constitutes split type retaining sleeve after closing up, that is, closes Hold together rear tapered, while the conical centre opens up perforation, and adjacent grip block is connected by compressing spring, by the work for compressing spring With, after grip block to be formed to circular form, can outside spreading, to grip block is pressed on location hole inner wall, simultaneously After the thrust of press part disappears, under the action of compressing spring, so that split type retaining sleeve is flared out, to hold in taper It sets in slot and gradually resets, so that perforation expansion, this simple and practical in structure, be easily installed, effectively realize to different size pin rods Clamping.

The utility model is further arranged to the locating slot and slippage slot is overlapped setting.

The beneficial effect being arranged in this way is: using the above scheme, so that overall structure is more compact, layout is more reasonable, It is more convenient to operate.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment；

Fig. 2 is the partial enlarged view of positioning plate section in the utility model embodiment；

Fig. 3 is the explosive figure of positioning plate in the utility model embodiment；

Fig. 4 is the structural schematic diagram of split type retaining sleeve in the utility model embodiment.

Specific embodiment

It is disclosed by Fig. 1 to Fig. 4 a kind of for detecting the pulling force fixture of retainer tensile strength, including positioning plate 3 and two A symmetrically arranged pull rod 1, the positioning plate 3 are separately positioned on the two sides of pull rod 1, and 1 both ends of pull rod are provided with locating rod 2, the locating rod 2 passes through the setting of positioning plate 3 and forms the limit rotated to positioning plate 3, is provided on the positioning plate 3 for wearing If the location hole 41 of pin rod 5.3 length direction of positioning plate is provided with slippage slot 31 on the positioning plate 3, on the positioning plate 3 It is provided with mounting plate 4 and lock screw 32, the side of positioning plate 3 is arranged in the mounting plate 4, and the setting of lock screw 32 exists The other side of positioning plate 3, lock hole is provided on the mounting plate 4, and 32 bar portion of lock screw is arranged across slippage slot 31 And be threadedly engaged with lock hole, the lock screw 32 is threadedly engaged to form mounting plate 4 and lock screw 32 to fixed with lock hole The clamping of position plate 3, the location hole 41 are arranged on mounting plate 4, and the setting of 41 position of location hole is corresponded on the positioning plate 3 and is used and is determined Position slot, the locating slot and slippage slot 31 coincide.The tapered setting of the location hole 41, in location hole on the mounting plate 4 The circumferential direction of 41 wider one end, which is provided with, adjusts ring 42, is movably set with split type retaining sleeve 6, the fission in the location hole 41 The tapered setting of formula retaining sleeve 6 is simultaneously adapted with location hole 41, has been axially formed in the split type retaining sleeve 6 for clamping The perforation 62 of pin rod 5, it is described adjust to be threadedly engaged in ring 42 slid in location hole 41 for the split type retaining sleeve 6 of ejection Press part 7 offers the aperture 71 passed through for pin rod 5 on the press part 7.The split type retaining sleeve 6 is including between at least 3 pieces Every setting grip block, the grip block includes leptoprosopy and compresses face 63 for what is compressed by press part 7, and the leptoprosopy, which is less than, to be compressed Face 63 be arranged, it is described compress between face 63 and leptoprosopy by the first joint face 64, the second joint face 65 and in location hole 41 The contact inclined-plane 66 of wall contact connects, and the contact inclined-plane 66 is arc-shaped to be arranged and be adapted with 41 inner wall radian of location hole, institute It states and is provided between the second joint face 65 for grip block to be pressed on the first joint face 64 and adjacent grip block on grip block Spring 61 is compressed on 41 inner wall of location hole.

The above embodiments are only the preferred embodiment of the utility model, and the right of the utility model cannot be limited with this Range, therefore, equivalent variations made according to the patent scope of the utility model, such as using similar technique, similar structures Equivalent product is still fallen within the scope of the utility model.

Claims (5)

1. a kind of for detecting the pulling force fixture of retainer tensile strength, including positioning plate and two symmetrically arranged pull rods, institute State the two sides that positioning plate is separately positioned on pull rod, it is characterised in that: pull rod both ends are provided with locating rod, and the locating rod is worn It crosses positioning plate to be arranged to form the limit to positioning plate rotation, the location hole for wearing pin rod is provided on the positioning plate.

2. according to claim 1 for detecting the pulling force fixture of retainer tensile strength, it is characterised in that: the positioning Positioning plate length direction is provided with slippage slot on plate, mounting plate and lock screw, the installation are provided on the positioning plate The side of positioning plate is arranged in plate, and the lock screw is arranged in the other side of positioning plate, locking is provided on the mounting plate Hole, the lock screw bar portion pass through slippage slot and are arranged and are threadedly engaged with lock hole, the lock screw and lock hole screw thread The clamping of mounting plate and lock screw to positioning plate is cooperatively formed, the location hole is arranged on a mounting board, on the positioning plate Locating slot is used in corresponding position of positioning hole setting.

3. according to claim 2 for detecting the pulling force fixture of retainer tensile strength, it is characterised in that: the positioning The tapered setting in hole, the circumferential direction on the mounting plate in the wider one end of location hole are provided with adjusting ring, activity in the location hole It is provided with split type retaining sleeve, the split type retaining sleeve is tapered to be arranged and be adapted with location hole, the split type clamping It is axially formed the perforation for clamping pin bar in set, has been threadedly engaged in the adjusting ring for the split type retaining sleeve of ejection The press part slid in location hole offers the aperture passed through for pin rod on the press part.

4. according to claim 3 for detecting the pulling force fixture of retainer tensile strength, it is characterised in that: the fission Formula retaining sleeve includes that grip block is arranged at least 3 block gaps, and the grip block includes leptoprosopy and compresses for what is compressed by press part Face, the leptoprosopy be less than compresses face setting, it is described compress between face and leptoprosopy by the first joint face, the second joint face and with The contact inclined-plane connection of location hole inner wall contact, the contact inclined-plane is arc-shaped to be arranged and is adapted with location hole inner wall radian, It is fixed for grip block to be pressed on to be provided between the second joint face on the first joint face and adjacent grip block on the grip block Spring is compressed on the inner wall of position hole.

5. for detecting the pulling force fixture of retainer tensile strength according to Claims 2 or 3 or 4, it is characterised in that: institute It states locating slot and slippage slot is overlapped setting.