CN111306168A - Clamp spring, shaft assembly and bearing block assembly - Google Patents

Clamp spring, shaft assembly and bearing block assembly Download PDF

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Publication number
CN111306168A
CN111306168A CN202010256761.9A CN202010256761A CN111306168A CN 111306168 A CN111306168 A CN 111306168A CN 202010256761 A CN202010256761 A CN 202010256761A CN 111306168 A CN111306168 A CN 111306168A
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CN
China
Prior art keywords
clamp spring
ratchet
circlip
radial
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010256761.9A
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Chinese (zh)
Inventor
刘洋
陈达
邱海锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to CN202010256761.9A priority Critical patent/CN111306168A/en
Publication of CN111306168A publication Critical patent/CN111306168A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details
    • F16B21/186—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details external, i.e. with contracting action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/063—Fixing them on the shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

The clamp spring comprises a clamp spring body, wherein the clamp spring body is arc-shaped, the axial thickness of the clamp spring is continuously reduced or increased from the radial outer part to the radial inner part in the radial direction of the clamp spring, the circumferential length of the clamp spring is variable, and after the circumferential length of the clamp spring is determined, the first end of the clamp spring and the second end of the clamp spring are kept fixed in the circumferential direction of the clamp spring. Therefore, the circumferential length of the clamp spring can be adjusted, so that the clamp spring is closer to the bottom of the clamp spring groove, and the axial thickness of the clamp spring is continuously reduced from one of the radial outer part and the radial inner part to the other in the radial direction of the clamp spring, so that the clamp spring can compensate the gap between the clamp spring and the bearing, the bearing is pressed and fixed, and the fixing effect of the clamp spring is improved.

Description

Clamp spring, shaft assembly and bearing block assembly
Technical Field
The embodiment of the invention relates to the field of bearings, in particular to a clamp spring, a shaft assembly and a bearing seat assembly.
Background
When a bearing is mounted on a shaft or a bearing housing, the bearing generally needs to be axially positioned in order to fix the bearing in the axial direction. The axial positioning of the bearing comprises complete positioning and incomplete positioning, and can be selected according to actual requirements.
The mode of bearing axial full position uses the screw fastening at present, carries out axial to bearing inner race or outer lane and compresses tightly to realize axial positioning's purpose, however the outer lane full position of this kind of mode needs to customize the speciality clamp plate specially according to peripheral spare part, and needs the rational arrangement bolt position, guarantees that the bearing clamp plate atress is balanced. Therefore, the mode needs to use a customized special compression nut, a threaded hole needs to be machined in the shaft, anti-skidding needs to be considered among threads, the reliability is poor, and the cost is high. Therefore, the axial incomplete positioning is often used.
The axial incomplete positioning is realized in a simple mode, and the clamp spring is generally used for limiting the axial movement of the inner ring and the outer ring of the bearing. However, because the tolerance exists in the size of the processed snap spring, the width and the position of the snap spring groove and the size of the processed bearing, when the snap spring is installed in the snap spring groove, a certain gap exists between the bearing and the snap spring, the bearing has the possibility of moving and slipping after being subjected to axial force, and the fixing effect is not good.
Therefore, how to improve the fixing effect of the clamp spring becomes a technical problem which needs to be solved urgently by technicians in the field.
Disclosure of Invention
The embodiment of the invention solves the technical problem of how to improve the fixing effect of the clamp spring.
In order to solve the above problem, an embodiment of the present invention provides a snap spring, including:
the clamp spring comprises a clamp spring body, wherein the clamp spring body is arc-shaped, the axial thickness of the clamp spring is continuously reduced or increased from the radial outside to the radial inside in the radial direction of the clamp spring, the circumferential length of the clamp spring is variable, and after the circumferential length of the clamp spring is determined, the first end of the clamp spring and the second end of the clamp spring are kept fixed in the circumferential direction of the clamp spring.
Optionally, the circumferential length of the clamp spring is fixed through a ratchet.
Optionally, the clamp spring further includes:
the first ratchet is arranged at the first end of the clamp spring body, and the extending direction of the first ratchet is the direction which is far away from the tail end of the first end along the circumferential direction of the clamp spring;
the second ratchet is arranged at the second end of the clamp spring body, the extending direction of the second ratchet is the direction far away from the tail end of the second end along the circumferential direction of the clamp spring, the first ratchet and the second ratchet are matched with each other, and the number of at least one of the first ratchet and the second ratchet is greater than or equal to 2.
Optionally, the second side surface of the clamp spring is a plane.
Optionally, the second side surface of the clamp spring is a plane.
Optionally, the second side surface of the clamp spring is a concave surface.
Optionally, the clamp spring body is arc-shaped, and the axial thickness of the clamp spring is continuously reduced from the radial outer part to the radial inner part in the radial direction of the clamp spring;
the jump ring still includes:
a first mounting part fixedly connected to the radial outer side of the first ratchet and provided with a first mounting hole along the axial direction of the clamp spring,
and the second mounting part is fixedly connected to the radial outer side of the second ratchet, and a second mounting hole is formed in the axial direction of the clamp spring.
Optionally, the clamp spring body is arc-shaped, and the axial thickness of the clamp spring is continuously increased from the radial outer part to the radial inner part in the radial direction of the clamp spring;
the jump ring still includes:
a first mounting part fixedly connected to the radial inner side of the first ratchet and provided with a first mounting hole along the axial direction of the clamp spring,
and the second mounting part is fixedly connected to the radial inner side of the second ratchet and provided with a second mounting hole along the axial direction of the clamp spring.
An embodiment of the present invention further provides a shaft assembly, including:
the clamp spring;
the shaft is characterized in that a clamp spring groove is formed in the outer ring surface of the shaft, the clamp spring groove is annular, a first side surface of the clamp spring groove is suitable for being attached to a first side surface of the clamp spring, and a second side surface of the clamp spring groove is suitable for being attached to a second side surface of the clamp spring.
An embodiment of the present invention further provides a bearing housing assembly, including:
the clamp spring;
the bearing seat, the jump ring groove has been seted up to the interior anchor ring face of bearing seat, the jump ring groove is the annular, the first side in jump ring groove with the first side laminating of jump ring, the second side in jump ring groove is suitable for with the second side laminating of jump ring.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following advantages:
the clamp spring provided by the embodiment of the invention comprises: the clamp spring comprises a clamp spring body, wherein the clamp spring body is arc-shaped, the axial thickness of the clamp spring is continuously reduced or increased from the radial outside to the radial inside in the radial direction of the clamp spring, the circumferential length of the clamp spring is variable, and after the circumferential length of the clamp spring is determined, the first end of the clamp spring and the second end of the clamp spring are kept fixed in the circumferential direction of the clamp spring. Therefore, the clamp spring provided by the embodiment of the invention is arranged in the clamp spring groove matched with the clamp spring, the clamp spring groove can be closer to the bottom of the clamp spring groove by adjusting the circumferential length of the clamp spring due to the variable circumferential length of the clamp spring, and the clamp spring can compensate the gap between the clamp spring and the bearing and tightly fix the bearing due to the fact that the axial thickness of the clamp spring is continuously reduced from one of the radial outer part and the radial inner part to the other in the radial direction of the clamp spring, so that the fixing effect of the clamp spring is improved, and the bearing is prevented from being displaced relative to the shaft or the bearing seat to cause the failure of the bearing.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of a partial longitudinal section of a snap spring in an installed state;
fig. 2 is a schematic perspective view of a clamp spring according to an embodiment of the present invention;
fig. 3 is an end view of the clamp spring according to the embodiment of the present invention;
fig. 4 is a schematic perspective view of another clamp spring according to an embodiment of the present invention;
fig. 5 is an end view of another clamp spring according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of a snap spring, a shaft and a bearing according to an embodiment of the present invention;
fig. 7 is an end view of the clamp spring before adjustment according to the embodiment of the present invention;
FIG. 8 is another cross-sectional view of the clamp spring, the shaft and the bearing according to the embodiment of the present invention;
fig. 9 is another schematic view of an end surface of the clamp spring according to the embodiment of the present invention;
fig. 10 is a schematic cross-sectional view of a clamp spring, a shaft and a bearing according to an embodiment of the present invention;
fig. 11 is a schematic end view of another end face of the clamp spring according to the embodiment of the present invention;
fig. 12 is a schematic cross-sectional view of a clamp spring according to an embodiment of the present invention;
fig. 13 is a schematic cross-sectional view of another clamp spring according to an embodiment of the invention;
fig. 14 is a cross-sectional view of another clamp spring according to an embodiment of the invention.
Legend: 1. a clamp spring; 11. a first ratchet; 12. a second ratchet; 13. a first mounting portion; 14. a second mounting portion; 2. a bearing; 3. a shaft.
Detailed Description
Known from the background art, the fixing effect of the prior clamp spring is not good, and the clamp spring is specifically explained by combining one clamp spring.
Referring to fig. 1, fig. 1 is a schematic longitudinal sectional view of a portion of a snap spring in an installed state; .
It will be understood that the longitudinal section of the circlip 1 with the shaft 3 and the bearing 2 comprises two parts which are symmetrical about the axis of the shaft 3, one of which is shown in fig. 1 and the other part, not shown, is symmetrical about the axis of the shaft 3.
As shown in fig. 1, the longitudinal section of the snap spring 1 is rectangular. After the snap spring 1 is installed in the snap spring groove, due to machining tolerance and other reasons, a certain gap may exist between the bearing 2 and the snap spring 1 when the snap spring 1 is installed. And does not allow the bearing 2 to be well fixed. Thus, when the bearing 2 is subjected to a large axial load, the bearing 2 may shift or slip due to the clamping spring 1 not fixing the bearing 2 well, resulting in bearing displacement and even failure.
Therefore, in order to improve the fixing effect of the snap spring, an embodiment of the present invention provides a snap spring, and the following will clearly and completely describe the technical solution in the embodiment of the present invention with reference to the drawings in the embodiment of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2 and fig. 3, fig. 2 is a schematic perspective view of a snap spring provided in an embodiment of the present invention, and fig. 3 is a schematic end view of the snap spring provided in the embodiment of the present invention.
The clamp spring 1 provided by the embodiment of the invention comprises:
the clamp spring comprises a clamp spring body, wherein the clamp spring body is arc-shaped, the axial thickness of the clamp spring 1 is continuously reduced or increased from the radial outside to the radial inside in the radial direction of the clamp spring, the circumferential length of the clamp spring 1 is variable, and after the circumferential length of the clamp spring is determined, the first end of the clamp spring 1 and the second end of the clamp spring 1 are kept fixed in the circumferential direction of the clamp spring 1.
It can be understood that, when the snap spring 1 is mounted on the shaft 3, the snap spring groove adapted to the snap spring 1 is located on the outer circumferential surface of the shaft 3, and the axial thickness of the snap spring 1 is gradually reduced from the radially outer portion to the radially inner portion in the radial direction of the snap spring 1. When the clamp spring 1 is installed on the bearing seat, a clamp spring groove matched with the clamp spring 1 is located on the inner annular surface of the bearing seat, and the axial thickness of the clamp spring 1 is continuously increased from the radial outer part to the radial inner part in the radial direction of the clamp spring 1.
Like this, when installation jump ring 1, can reduce through the adjustment jump ring 1's circumference length makes the jump ring groove more presses close to the bottom in jump ring groove, because jump ring 1's axial thickness is in by radial outside to radial inside constantly reducing on jump ring 1's the radial direction, jump ring 1 just can compensate jump ring 1 with because the clearance that reasons such as machining tolerance produced compresses tightly fixedly between the bearing 2.
The snap spring may be suitable for different axial tolerance conditions, and specifically, refer to fig. 6 to 11, fig. 6 is a schematic cross-sectional view of the snap spring, the shaft, and the bearing provided in the embodiment of the present invention, fig. 7 is a schematic end-face view of the snap spring before adjustment provided in the embodiment of the present invention, fig. 8 is another schematic cross-sectional view of the snap spring, the shaft, and the bearing provided in the embodiment of the present invention, fig. 9 is another schematic end-face view of the snap spring provided in the embodiment of the present invention, fig. 10 is another schematic cross-sectional view of the snap spring, the shaft, and the bearing provided in the embodiment of the present invention, and fig. 11 is another schematic end-face view of the snap spring provided in the.
Referring to fig. 6 and 7, due to reasons such as machining tolerance, the axial width of the bearing 2 is relatively large, so that when the bearing 2 is fixed, the distance b between the first end surface of the bearing 2 and the second side surface of the clamp spring groove is relatively large, the clamp spring 1 is integrally located at a position, closer to the radial outer side than the clamp spring groove, and is relatively far away from the bottom of the clamp spring groove, the opening angle θ between two ends of the clamp spring 1 is also relatively large, and the circumferential length of the clamp spring 1 is also relatively large.
Referring to fig. 8 and 9, when the axial width of the bearing 2 is relatively moderate, the distance b between the first end surface of the bearing 2 and the second side surface of the clamp spring groove is also relatively moderate, the clamp spring 1 is located at the radial middle position of the clamp spring groove as a whole, the distance from the clamp spring groove is moderate, the opening angle θ between the two ends of the clamp spring 1 is also relatively moderate, and the circumferential length of the clamp spring 1 is also relatively moderate.
Referring to fig. 6 and 7, due to reasons such as machining tolerance, the axial width of the bearing 2 is relatively small, so that when the bearing 2 is fixed, the distance b between the first end surface of the bearing 2 and the second side surface of the clamp spring groove is relatively small, the clamp spring 1 is integrally located at a position closer to the radial inner side of the clamp spring groove and closer to the bottom of the clamp spring groove, the opening angle θ between the two ends of the clamp spring 1 is also relatively small, and the circumferential length of the clamp spring 1 is also relatively small.
The situation that the clamp spring 1 is installed on the bearing seat is similar to the situation that the clamp spring 1 is installed on the shaft, and the description is omitted.
Therefore, the clamp spring provided by the embodiment of the invention is arranged in the clamp spring groove matched with the clamp spring, the clamp spring groove can be closer to the bottom of the clamp spring groove by adjusting the circumferential length of the clamp spring due to the variable circumferential length of the clamp spring, and the clamp spring can compensate the gap between the clamp spring and the bearing and tightly fix the bearing due to the fact that the axial thickness of the clamp spring is continuously reduced from one of the radial outer part and the radial inner part to the other in the radial direction of the clamp spring, so that the fixing effect of the clamp spring is improved, and the bearing is prevented from being displaced relative to the shaft or the bearing seat to cause the failure of the bearing.
The circumferential length of the clamp spring 1 is variable, and after the circumferential length of the clamp spring 1 is determined, the first end of the clamp spring 1 and the second end of the clamp spring 1 are kept fixed along the circumferential direction of the clamp spring 1 in various ways. In a specific embodiment, in order to facilitate adjustment of the circumferential length of the snap spring 1, please refer to fig. 2 to 5, where the snap spring 1 provided in the embodiment of the present invention further includes: the first ratchet 11 is arranged at the first end of the clamp spring body, and the extending direction of the first ratchet 11 is the direction which is far away from the tail end of the first end along the circumferential direction of the clamp spring 1; the second ratchet 12 is arranged at the second end of the clamp spring body, the extending direction of the second ratchet 12 is the direction far away from the tail end of the second end along the circumferential direction of the clamp spring 1, the first ratchet 11 and the second ratchet 12 are matched with each other, and the number of at least one of the first ratchet 11 and the second ratchet 12 is greater than or equal to 2.
It is understood that the first ratchet 11 and the second ratchet 12 are matched with each other in the meaning that one of the first ratchet 11 or the second ratchet 12 can be inserted into the gaps between the plurality of ratchets of the other, and the first ratchet 11 and the second ratchet 12 can be clamped with each other.
The meaning that the number of at least one of the first ratchet teeth 11 and the second ratchet teeth 12 is 2 or more means that the number of the first ratchet teeth 11 is 2 or more, and the number of the second ratchet teeth 12 is 2 or more, both of which satisfy at least 1, although the number of the first ratchet teeth 11 and the number of the second ratchet teeth 12 may be 2 or more.
The extending direction of the first ratchet 11 is a direction far away from the tail end of the first end along the circumferential direction of the clamp spring 1; the second end of the snap spring 1 is provided with a second ratchet 12, the extending direction of the second ratchet 12 is a direction away from the end of the second end along the circumferential direction of the snap spring 1, the extending direction of the first ratchet 11 is opposite to the extending direction of the second ratchet 12, and after the first ratchet 11 and the second ratchet 12 are clamped with each other, even if the first ratchet 11 and the second ratchet 12 are stretched along the circumferential direction of the snap spring 1, the first ratchet 11 and the second ratchet 12 are not separated from each other, but are kept fixed along the circumferential direction of the snap spring 1.
Because the number of at least one of the first ratchet teeth 11 and the second ratchet teeth 12 is greater than or equal to 2, the clamping position of the first ratchet teeth 11 and the second ratchet teeth 12 can be adjusted, and the circumferential length of the clamp spring 1 can be changed.
In this way, by arranging the first ratchet 11 at the first end of the snap spring 1 and arranging the second ratchet 12 at the second end of the snap spring 1, the circumferential length of the snap spring 1 can be changed well, and the circumferential fixing effect of the first end of the snap spring 1 and the second end of the snap spring 1 along the snap spring 1 is improved.
The number of the first ratchet teeth 11 and the number of the second ratchet teeth 12 may be set as desired.
In one embodiment, the number of the first ratchet teeth 11 is the same as the number of the second ratchet teeth 12. Since the number of the first ratchet teeth 11 is the same as that of the second ratchet teeth 12, when the circumferential length of the circlip 1 is adjusted to be shortest, the first ratchet teeth 11 and the second ratchet teeth 12 can be completely engaged without idle ratchet teeth, so that the fixing effect between the first ratchet teeth 11 and the second ratchet teeth 12 can be improved.
In another embodiment, the number of the first ratchet teeth 11 ranges from 4 to 10, or the number of the second ratchet teeth 12 ranges from 4 to 10. When the number of the first ratchet teeth 11 or the number of the second ratchet teeth 12 is large, the processing is complicated, and when the circumferential length of the clamp spring 1 is equal to the circumference of the shaft 3 in actual use, the clamp spring cannot be further clamped, so that the ratchet teeth are easily wasted; when the number of the first ratchet teeth 11 or the number of the second ratchet teeth 12 is small, the adjustment range of the circumferential length of the snap spring 1 is small, and the adjustment requirement of the circumferential length of the snap spring 1 cannot be completely met. Preferably, when the number of the first ratchets 11 ranges from 4 to 10, or the number of the second ratchets 12 ranges from 4 to 10, the waste of the ratchets is not easily caused, the processing complexity can be effectively reduced, and the adjustment range of the circumferential length of the snap spring 1 is large.
The shape of the first side surface of the clamp spring 1 can be set as required. In a specific embodiment, the first side surface of the snap spring 1 is a plane, and the first side surface of the snap spring 1 is perpendicular to the axis of the snap spring 1. Because the terminal surface of bearing 2 is the plane generally, through with the first side of jump ring 1 sets up to the plane, can conveniently laminate the terminal surface of bearing 2, and need not to process separately bearing 2 is in order to cooperate jump ring 1.
The shape of the second side surface of the clamp spring 1 can also be set according to the requirement.
Referring to fig. 12, fig. 12 is a schematic cross-sectional view of a snap spring 1 according to an embodiment of the present invention, in an embodiment, a second side surface of the snap spring 1 is a plane. When the first side face and the second side face of the clamp spring 1 are both flat faces, when the opening angle theta between the two ends of the clamp spring 1 is adjusted, the clamp spring is in a linear relation between the axial displacement of the clamp spring and the variation of the opening angle theta between the two ends of the clamp spring 1, and the clamp spring can adapt to adjustment requirements. When the clamp spring 1 is arranged on the bearing seat, the principle is similar, and the description is omitted.
Fig. 13 is a schematic cross-sectional view of another clamp spring according to an embodiment of the present invention, in another specific embodiment, a second side surface of the clamp spring 1 is a convex surface. When the opening angle theta between the two ends of the clamp spring 1 is adjusted, the displacement of the clamp spring along the axial direction of the clamp spring and the variable quantity of the opening angle theta between the two ends of the clamp spring 1 are not in a linear relation; when the clamp spring 1 is arranged on the shaft 3, and the opening angle theta between the two ends of the clamp spring 1 is reduced by unit amplitude, the clamp spring is displaced more and more along the axial direction of the clamp spring, and the requirement of a specific situation can be met. When the clamp spring 1 is arranged on the bearing seat, the principle is similar, and the description is omitted.
Fig. 14 is a schematic cross-sectional view of another clamp spring according to an embodiment of the present invention, in another specific embodiment, the second side surface of the clamp spring 1 is a concave surface. When the opening angle theta between the two ends of the clamp spring 1 is adjusted, the displacement of the clamp spring along the axial direction of the clamp spring and the variable quantity of the opening angle theta between the two ends of the clamp spring 1 are not in a linear relation; when the clamp spring 1 is arranged on the shaft 3, and the opening angle theta between the two ends of the clamp spring 1 is reduced by unit amplitude, the axial displacement of the clamp spring along the clamp spring is smaller and smaller, and the requirement of a specific situation can be met. When the clamp spring 1 is arranged on the bearing seat, the principle is similar, and the description is omitted.
In order to adjust the circumferential length of the snap spring 1, a structure required for installation may be provided on the snap spring 1, and when the snap spring 1 is installed on the outer side of the transmission shaft 3, please refer to fig. 1 and 2, the axial thickness of the snap spring is continuously reduced from the radial outer portion to the radial inner portion in the radial direction of the snap spring; the jump ring still includes: first installation department 13, fixed connection in the radial outside of first ratchet, and follow first mounting hole has been seted up to the axial of jump ring, second installation department 14, fixed connection in the radial outside of second ratchet, and follow the second mounting hole has been seted up to the axial of jump ring.
When the snap spring 1 is installed inside the bearing seat, please refer to fig. 4 and 5, fig. 4 is a schematic perspective view of another snap spring 1 provided in the embodiment of the present invention, fig. 5 is a schematic end view of another snap spring 1 provided in the embodiment of the present invention, an axial thickness of the snap spring is continuously increased from a radial outer portion to a radial inner portion in a radial direction of the snap spring, and the snap spring further includes: first installation department 13, fixed connection in the radial inboard of first ratchet, and follow first mounting hole has been seted up to the axial of jump ring, second installation department 14, fixed connection in the radial inboard of second ratchet, and follow the second mounting hole has been seted up to the axial of jump ring.
When the circumferential length of the clamp spring 1 is adjusted, the two binding clip heads of the clamp spring pliers are inserted into the first mounting hole and the second mounting hole, then the handles of the clamp spring pliers are pulled or held tightly, and the distance between the two mounting holes is adjusted by adjusting the distance between the two binding clip heads of the clamp spring pliers, so that the purpose of adjusting the circumferential length of the clamp spring 1 can be achieved.
The embodiment of the present invention further provides a shaft assembly, which includes: the clamp spring comprises a clamp spring and a shaft, wherein a clamp spring groove is formed in the outer ring surface of the shaft, the clamp spring groove is annular, a first side surface of the clamp spring groove is suitable for being attached to a first side surface of the clamp spring, and a second side surface of the clamp spring groove is suitable for being attached to a second side surface of the clamp spring.
It will be appreciated that the first mounting portion 13 and the second mounting portion 14 are located radially outwardly of the circlip 1 when the circlip 1 is mounted on the shaft 3. When the clamp spring 1 is installed on the shaft 3, the clamp spring groove matched with the clamp spring 1 is positioned on the outer annular surface of the shaft 3, and the axial thickness of the clamp spring 1 is continuously reduced from the radial outer part to the radial inner part in the radial direction of the clamp spring 1. Installing jump ring 1 with during bearing 2, can reduce through the adjustment jump ring 1's circumference length makes the jump ring groove more presses close to the bottom in jump ring groove, because jump ring 1's axial thickness is in constantly reduce by radial outside to radial inside on jump ring 1's the radial direction, jump ring 1 just can compensate jump ring 1 with clearance between the bearing 2 compresses tightly fixedly bearing 2 to improve fixed effect.
An embodiment of the present invention further provides a bearing housing assembly, including: the clamp spring comprises clamp springs and a bearing seat, wherein a clamp spring groove is formed in the inner ring surface of the bearing seat, the clamp spring groove is annular, a first side surface of the clamp spring groove is attached to a first side surface of each clamp spring, and a second side surface of the clamp spring groove is suitable for being attached to a second side surface of each clamp spring.
It will be appreciated that the first mounting portion 13 and the second mounting portion 14 are located radially inwardly of the circlip 1 when the circlip 1 is mounted on the bearing seat. When the clamp spring 1 is installed on the bearing seat, a clamp spring groove matched with the clamp spring 1 is located on the inner annular surface of the bearing seat, and the axial thickness of the clamp spring 1 is continuously reduced from the radial inner part to the radial outer part in the radial direction of the clamp spring 1. Like this, at the installation jump ring 1 with during bearing 2, can increase through the adjustment jump ring 1 circumference length makes the jump ring groove more presses close to the bottom in jump ring groove, because jump ring 1's axial thickness is in by radial inside to radial outside constantly reduce on jump ring 1's the radial direction, jump ring 1 just can compensate jump ring 1 with clearance between the bearing 2 compresses tightly fixedly bearing 2 to improve fixed effect.
Although the embodiments of the present invention are disclosed above, the embodiments of the present invention are not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present embodiments, and it is intended that the scope of the present embodiments be defined by the appended claims.

Claims (10)

1. A circlip, comprising:
the clamp spring comprises a clamp spring body, wherein the clamp spring body is arc-shaped, the axial thickness of the clamp spring is continuously reduced or increased from the radial outside to the radial inside in the radial direction of the clamp spring, the circumferential length of the clamp spring is variable, and after the circumferential length of the clamp spring is determined, the first end of the clamp spring and the second end of the clamp spring are kept fixed in the circumferential direction of the clamp spring.
2. The circlip of claim 1 wherein the circumferential length is fixed by a ratchet.
3. The circlip of claim 2 further comprising:
the first ratchet is arranged at the first end of the clamp spring body, and the extending direction of the first ratchet is the direction which is far away from the tail end of the first end along the circumferential direction of the clamp spring;
the second ratchet is arranged at the second end of the clamp spring body, the extending direction of the second ratchet is the direction far away from the tail end of the second end along the circumferential direction of the clamp spring, the first ratchet and the second ratchet are matched with each other, and the number of at least one of the first ratchet and the second ratchet is greater than or equal to 2.
4. The circlip of claim 1 wherein the second side of the circlip is planar.
5. The circlip of claim 1 wherein the second side of the circlip is convex.
6. The circlip of claim 1 wherein the second side of the circlip is concave.
7. The circlip of any one of claims 1 to 6, wherein the axial thickness of the circlip decreases in the radial direction of the circlip from the radially outer portion to the radially inner portion;
the jump ring still includes:
a first mounting part fixedly connected to the radial outer side of the first ratchet and provided with a first mounting hole along the axial direction of the clamp spring,
and the second mounting part is fixedly connected to the radial outer side of the second ratchet, and a second mounting hole is formed in the axial direction of the clamp spring.
8. The circlip of any one of claims 1 to 6, wherein the circlip has an axial thickness that increases in the radial direction of the circlip from the radially outer portion to the radially inner portion;
the jump ring still includes:
a first mounting part fixedly connected to the radial inner side of the first ratchet and provided with a first mounting hole along the axial direction of the clamp spring,
and the second mounting part is fixedly connected to the radial inner side of the second ratchet and provided with a second mounting hole along the axial direction of the clamp spring.
9. A shaft assembly, comprising:
the circlip of claim 7;
the shaft is characterized in that a clamp spring groove is formed in the outer ring surface of the shaft, the clamp spring groove is annular, a first side surface of the clamp spring groove is suitable for being attached to a first side surface of the clamp spring, and a second side surface of the clamp spring groove is suitable for being attached to a second side surface of the clamp spring.
10. A bearing housing assembly, comprising:
the circlip of claim 8;
the bearing seat, the jump ring groove has been seted up to the interior anchor ring face of bearing seat, the jump ring groove is the annular, the first side in jump ring groove with the first side laminating of jump ring, the second side in jump ring groove is suitable for with the second side laminating of jump ring.
CN202010256761.9A 2020-04-02 2020-04-02 Clamp spring, shaft assembly and bearing block assembly Pending CN111306168A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010256761.9A CN111306168A (en) 2020-04-02 2020-04-02 Clamp spring, shaft assembly and bearing block assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010256761.9A CN111306168A (en) 2020-04-02 2020-04-02 Clamp spring, shaft assembly and bearing block assembly

Publications (1)

Publication Number Publication Date
CN111306168A true CN111306168A (en) 2020-06-19

Family

ID=71157751

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010256761.9A Pending CN111306168A (en) 2020-04-02 2020-04-02 Clamp spring, shaft assembly and bearing block assembly

Country Status (1)

Country Link
CN (1) CN111306168A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113586667A (en) * 2021-07-30 2021-11-02 中汽创智科技有限公司 Worm gear mechanism and electric power steering system
CN114294335A (en) * 2021-12-30 2022-04-08 浙江鑫永利卡环有限公司 Stable tension bearing snap ring

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113586667A (en) * 2021-07-30 2021-11-02 中汽创智科技有限公司 Worm gear mechanism and electric power steering system
CN114294335A (en) * 2021-12-30 2022-04-08 浙江鑫永利卡环有限公司 Stable tension bearing snap ring
CN114294335B (en) * 2021-12-30 2022-07-26 浙江鑫永利卡环有限公司 Steady tension bearing snap ring

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Application publication date: 20200619