CN210338914U - Shaft neck protective sleeve - Google Patents

Abstract

The utility model provides a shaft neck protective sheath, including last arc cover and lower arc cover, the inboard of going up arc cover and lower arc cover sets up relatively and forms the centre gripping passageway, goes up arc cover and divides equally other fixed mounting with the both ends of lower arc cover and has ear plate and lower ear plate, is equipped with a plurality of elastic mechanism between the last ear plate of homonymy and the lower ear plate, and elastic mechanism applys the effort that is close to each other to last ear plate and lower ear plate, the inner wall of going up arc cover and lower arc cover all is equipped with the cushion rubber layer. The utility model discloses a this protective sheath can cramp the axle journal, prevents that the axle journal at axletree both ends from colliding with impairedly, goes up the arc cover and down the arc cover between the centre gripping passageway opening size changeable, makes this protective sheath can cramp multiple specification and dimension's axle journal, and the suitability is high, and the easy suit of protective sheath is on the axle journal, is difficult for the landing.

Description

Shaft neck protective sleeve

Technical Field

The utility model belongs to the technical field of the axle journal protection, concretely relates to axle journal protective sheath.

Background

The axle of the railway wagon is a main accessory of the wheel pair, and the axle of the railway wagon forms the wheel pair with the wheels, and two ends of the axle are matched with the axle box lubricating devices to ensure the safe operation of the wagon.

In the axletree production process or after overhauing and dismantling the wheel, the axletree is a polished rod, often need install guard ring or protective sheath in the axle journal department at axletree both ends when depositing the axletree to be convenient for place the axletree on ground or deposit the rack, prevent simultaneously that the axle journal at axletree both ends from colliding with the damage. The traditional method is to install a protective sleeve at the position of a journal, but the bearing capacity of the conventional journal protective sleeve is limited, the protective sleeve is matched with the specifications and sizes of the journal, namely one protective sleeve is only suitable for the journal with one specification and size and cannot be suitable for the journals with different specifications and sizes, the adaptability is low, the protective sleeve is too large and is easy to slide off, and the protective sleeve is too small and is difficult to be sleeved at the position of the journal.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a shaft neck protective sheath, this protective sheath are used for the suit to prevent on the axle journal that the axle journal at both ends from colliding with impairedly, and the centre gripping passageway opening size of protective sheath is variable, makes this protective sheath can cramp multiple specification and dimension's axle journal, and the suitability is high, and the easy suit of protective sheath is on the axle journal, is difficult for the landing.

The utility model discloses a following technical scheme realizes:

a shaft neck protective sleeve comprises an upper arc-shaped sleeve and a lower arc-shaped sleeve; the inner sides of the upper arc-shaped sleeve and the lower arc-shaped sleeve are oppositely arranged and form a clamping channel which is convenient for hooping a shaft neck, the two ends of the upper arc-shaped sleeve and the lower arc-shaped sleeve are respectively and fixedly provided with an upper ear plate and a lower ear plate, a plurality of elastic mechanisms are arranged between the upper ear plate and the lower ear plate at the same side, the elastic mechanisms apply mutually close acting force to the upper ear plate and the lower ear plate, under the action of external force, the elastic mechanism stretches, the distance between the upper lug plate and the lower lug plate is enlarged, the opening of the clamping channel between the upper arc-shaped sleeve and the lower arc-shaped sleeve is enlarged, the shaft neck can conveniently stretch into the clamping channel, after the external force is released, under the action of the elastic restoring force of the elastic mechanism, the opening of the clamping channel between the upper arc-shaped sleeve and the lower arc-shaped sleeve is reduced, the inner walls of the upper arc-shaped sleeve and the lower arc-shaped sleeve are provided with buffer rubber layers, and the buffer rubber layers can effectively protect the shaft neck when the shaft neck is hooped by the upper arc-shaped sleeve and the lower arc-shaped sleeve; this protective sheath can cramp the axle journal, prevents that the axle journal at axletree both ends from colliding with impairedly, goes up the arc cover and down the centre gripping passageway opening size between the arc cover changeable, makes this protective sheath can cramp the axle journal of multiple specification and dimension, and the suitability is high, and the easy suit of protective sheath is on the axle journal, is difficult for the landing.

Furthermore, the number of the elastic mechanisms arranged between the upper lug plate and the lower lug plate on the same side is two, so that the upper arc-shaped sleeve and the lower arc-shaped sleeve can be ensured to hoop the shaft neck.

Further, the elastic mechanism comprises a U-shaped tube barrel, a connecting rod, a sliding block and a spring, wherein the lower lug plate is provided with a through hole convenient for the connecting rod to slide in a limiting way, one end of the opening of the U-shaped tube barrel is fixedly arranged at the through hole at the bottom end of the lower lug plate, the sliding block is slidably arranged in the U-shaped tube barrel, two ends of the connecting rod are respectively and fixedly connected with the bottom end of the upper lug plate and the sliding block, specifically, the upper end of the connecting rod is fixedly connected with the bottom end of the upper lug plate, the lower end of the connecting rod penetrates through the through hole and extends into the U-shaped tube barrel to be fixedly connected with the top end face of the sliding block, the spring is arranged in the U-shaped tube barrel and is sleeved on the connecting rod, two ends of the spring are respectively abutted against the lower lug plate and the sliding block, when in operation, external force is applied to enlarge the opening of the clamping channel between the upper, the spring extends and pushes the sliding block, the opening of the clamping channel between the upper arc-shaped sleeve and the lower arc-shaped sleeve becomes small, and the shaft neck is hooped tightly.

Furthermore, the outer wall of the lower arc-shaped sleeve is provided with a supporting foot plate, and the protective sleeve can be placed on the ground or a supporting platform through the supporting foot plate.

Furthermore, go up arc cover middle part outer wall and be equipped with the handle, the both ends of handle are articulated with last arc cover respectively, are convenient for operate this protective sheath through the handle.

According to the above technical scheme, the utility model provides a pair of journal protective sheath, beneficial effect lies in: under the exogenic action, elastic mechanism is tensile, go up the interval grow between otic placode and the lower otic placode, go up the arc cover and overlap the opening grow of centre gripping passageway down between the arc, be convenient for stretch into the axle journal in the centre gripping passageway, after releasing external force, under elastic mechanism's elasticity restoring force effect, the opening of going up the arc cover and overlap between the arc down centre gripping passageway diminishes, and cramp the axle journal, the axle journal can be cramped to this protective sheath, it is impaired to prevent that the axle journal at axletree both ends from colliding with, go up the arc cover and overlap down centre gripping passageway opening size between the arc and be variable, make this protective sheath can cramp multiple specification and dimension's axle journal, adaptability is high, the protective sheath is suit on the axle journal easily, difficult landing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic cross-sectional structure diagram of the present invention.

Fig. 2 is a schematic side view of the present invention.

In the drawings: 1-upper arc sleeve, 2-lower arc sleeve, 3-upper lug plate, 4-lower lug plate, 5-elastic mechanism, 51-U-shaped pipe barrel, 52-connecting rod, 53-sliding block, 54-spring, 6-buffer rubber layer, 7-supporting foot plate, 8-handle and 9-shaft neck.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 2, a journal protection sleeve comprises an upper arc sleeve 1 and a lower arc sleeve 2; the inner sides of the upper arc-shaped sleeve 1 and the lower arc-shaped sleeve 2 are oppositely arranged and form a clamping channel, so that a shaft neck 9 is conveniently hooped, the two ends of the upper arc-shaped sleeve 1 and the lower arc-shaped sleeve 2 are respectively and fixedly provided with an upper ear plate 3 and a lower ear plate 4, two elastic mechanisms 5 are arranged between the upper ear plate 3 and the lower ear plate 4 on the same side, the elastic mechanisms 5 apply mutually approaching acting force on the upper ear plate 3 and the lower ear plate 4, so that the upper arc-shaped sleeve 1 and the lower arc-shaped sleeve 2 can be ensured to hoop the shaft neck 9, each elastic mechanism 5 comprises a U-shaped pipe barrel 51, a connecting rod 52, a sliding block 53 and a spring 54, the lower ear plate 4 is provided with a through hole 41 convenient for the connecting rod 52 to limit and slide, one end of an opening of the U-shaped pipe 51 is fixedly arranged at the through hole 41 at the bottom end of the lower ear plate 4, the sliding block 53 is slidably arranged in the U, the upper end of the connecting rod 52 is fixedly connected with the bottom end of the upper ear plate 3, the lower end of the connecting rod 52 passes through the through hole 41 and extends into the U-shaped tube 51 to be fixedly connected with the top end face of the sliding block 53, the spring 54 is installed in the U-shaped tube 51 and sleeved on the connecting rod 52, the two ends of the spring 54 respectively abut against the lower ear plate 4 and the sliding block 53, when in operation, external force is applied, the distance between the upper ear plate 3 and the lower ear plate 4 is enlarged, the opening of the clamping channel between the upper arc-shaped sleeve 1 and the lower arc-shaped sleeve 2 is enlarged, the shaft neck 9 extends into the clamping channel, at the moment, the connecting rod 52 drives the sliding block 53 to move, the sliding block 53 compresses the spring 54, after the external force is released, under the elastic restoring force action of the spring 54, the spring 54 extends and pushes the sliding block 53, the opening of the clamping channel between the upper arc-shaped sleeve 1 and the lower arc-shaped sleeve 2 is reduced, when the upper arc-shaped sleeve 1 and the lower arc-shaped sleeve 2 hoop the shaft neck 9, the buffer rubber layer 6 can effectively protect the shaft neck 9; this protective sheath can cramp axle journal 9, prevents that the axle journal 9 at axletree both ends from colliding with impairedly, goes up arc cover 1 and down the arc and overlap the centre gripping passageway opening size between 2 changeable, makes this protective sheath can cramp the axle journal 9 of multiple specification and dimension, and the suitability is high, and the protective sheath suit is difficult for the landing on axle journal 9 easily.

In this embodiment, the outer wall of the lower arc-shaped sleeve 2 is provided with a supporting foot plate 7, and the protective sleeve can be placed on the ground or a supporting platform through the supporting foot plate 7.

In this embodiment, go up 1 middle part outer wall of arc cover and be equipped with handle 8, the both ends of handle 8 are articulated with last arc cover 1 respectively, are convenient for operate this protective sheath through handle 8.

The working principle of the embodiment is as follows: when the protective sleeve is used for protecting the shaft neck 9, external force is applied to enable the distance between the upper lug plate 3 and the lower lug plate 4 to be increased, the opening of the clamping channel between the upper arc-shaped sleeve 1 and the lower arc-shaped sleeve 2 is increased, in the process, the connecting rod 52 drives the sliding block 53 to move, the sliding block 53 compresses the spring 54, the shaft neck 9 extends into the clamping channel between the upper arc-shaped sleeve 1 and the lower arc-shaped sleeve 2, after the external force is released, under the action of the elastic restoring force of the spring 54, the spring 54 pushes the sliding block 53, the sliding block 53 drives the connecting rod 52 to move, so that the distance between the upper lug plate 3 and the lower lug plate 4 is reduced, the opening of the clamping channel between the upper arc-shaped sleeve 1 and the lower arc-shaped sleeve; this protective sheath can cramp axle journal 9, prevents that the axle journal 9 at axletree both ends from colliding with impairedly, goes up arc cover 1 and down the arc and overlap the centre gripping passageway opening size between 2 changeable, makes this protective sheath can cramp the axle journal 9 of multiple specification and dimension, and the suitability is high, and the protective sheath suit is difficult for the landing on axle journal 9 easily.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (5)

1. A journal protective sheath which characterized in that: comprises an upper arc-shaped sleeve (1) and a lower arc-shaped sleeve (2); go up the inboard relative setting of arc cover (1) and arc cover (2) down and form the centre gripping passageway, go up arc cover (1) and the both ends of arc cover (2) down and equally divide and do not fixed mounting have ear plate (3) and ear plate (4) down, be equipped with a plurality of elastic mechanism (5) between last ear plate (3) of homonymy and ear plate (4) down, the inner wall of going up arc cover (1) and arc cover (2) down all is equipped with cushion rubber layer (6).

2. A journal protection sleeve according to claim 1 wherein: the number of the elastic mechanisms (5) arranged between the upper ear plate (3) and the lower ear plate (4) at the same side is two.

3. A journal protector according to claim 1 or 2 wherein: elastic mechanism (5) are including U-shaped bobbin (51), connecting rod (52), slider (53) and spring (54), lower otic placode (4) are seted up and are convenient for connecting rod (52) spacing gliding through-hole (41), U-shaped bobbin (51) opening one end fixed mounting is in through-hole (41) of lower otic placode (4) bottom department, slider (53) slidable mounting is in U-shaped bobbin (51), the both ends of connecting rod (52) respectively with the bottom and slider (53) fixed connection of last otic placode (3), spring (54) are installed in U-shaped bobbin (51) and are established on connecting rod (52) in the cover, the both ends of spring (54) offset with lower otic placode (4) and slider (53) respectively.

4. A journal protection sleeve according to claim 1 wherein: the outer wall of the lower arc-shaped sleeve (2) is provided with a supporting foot plate (7).

5. A journal protection sleeve according to claim 1 wherein: go up arc cover (1) middle part outer wall and be equipped with handle (8), the both ends of handle (8) are articulated with last arc cover (1) respectively.

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