CN211680808U - Press mounting device - Google Patents

Abstract

The utility model provides a pressure equipment device. The press-fitting device comprises: the press-fitting assembly comprises a press-fitting shaft and a pressure applying head which are connected, and the pressure applying head is provided with a step part for supporting the annular piece to be installed; the mounting sleeve is arranged on the periphery of one part of the press-fitting assembly, and the press-fitting assembly is movably arranged relative to the mounting sleeve; the clamping part comprises at least two clamping jaws which are pivotally connected with one end of the mounting sleeve close to the pressure applying head, and the at least two clamping jaws are arranged at intervals along the circumferential direction of the mounting sleeve; the clamping part at least has a locking state, when the clamping part is in the locking state, the clamping jaws move towards one side close to the press fitting assembly, and the clamping jaws are in abutting contact with the outer peripheral surface of the annular piece to be installed so as to clamp the annular piece to be installed in the circumferential direction. The technical scheme of the utility model the problem of the interior conical surface of the ring unit (tapered roller bearing's outer lane) of installing is treated to the pressure equipment device fragile of correlation technique has been solved.

Description

Press mounting device

Technical Field

The utility model relates to a pressure equipment instrument field of loop forming element particularly, relates to a pressure equipment device.

Background

In a technique known to the inventor, a press-fitting device for an outer ring of a tapered roller bearing is generally positioned in contact with an inner tapered surface of the outer ring of the tapered roller bearing, that is, a press-fitting head of the press-fitting device is in abutting contact with the inner tapered surface of the outer ring, so that the inner tapered surface of the outer ring is easily damaged or worn because the press-fitting head directly contacts the inner tapered surface of the outer ring. If the inner conical surface is damaged by the pressure applying head, the service life of the tapered roller bearing is influenced, and the problem that the tapered roller bearing generates abnormal sound in the rotating process is easily caused, so that the abrasion of the bearing is aggravated, and the service life of the tapered roller bearing is influenced.

In the above, in the case of the annular member such as the outer ring of the tapered roller bearing, the press-fitting device in the above technique has a problem that the inner wall surface of the annular member to be mounted is easily damaged.

Disclosure of Invention

A primary object of the present invention is to provide a press-fitting device to solve the problem of the inner wall surface of the ring-shaped member to be mounted, which is easily damaged in the press-fitting device of the related art.

In order to achieve the above object, the utility model provides a press mounting device, press mounting device includes: the press-fitting assembly comprises a press-fitting shaft and a pressure applying head which are connected, and the pressure applying head is provided with a step part for supporting the annular piece to be installed; the mounting sleeve is arranged on the periphery of one part of the press-fitting assembly, and the press-fitting assembly is movably arranged relative to the mounting sleeve; the clamping part comprises at least two clamping jaws which are pivotally connected with one end of the mounting sleeve close to the pressure applying head, and the at least two clamping jaws are arranged at intervals along the circumferential direction of the mounting sleeve; when the clamping part is in the locking state, the clamping jaws move towards one side close to the press fitting assembly and are in abutting contact with the outer peripheral surface of the annular piece to be installed so as to clamp the annular piece to be installed in the circumferential direction; when external force acts on the press-fitting shaft, the pressing head can drive the ring piece to be installed to move towards one side far away from the press-fitting shaft.

Furthermore, the press-fitting device also comprises at least two elastic parts which are arranged corresponding to the at least two clamping jaws one to one, and the elastic parts are used for applying acting force on the clamping jaws to enable the clamping jaws to be in a locking state.

Further, the press-fitting device comprises three clamping jaws and elastic parts which correspond to the three clamping jaws one to one, wherein the three clamping jaws are uniformly arranged at intervals along the circumferential direction of the mounting sleeve.

Furthermore, the press-fitting device also comprises a detection pin; a first mounting through hole for mounting a detection pin is formed in a pressing head of the press-fitting assembly, at least one end of the detection pin penetrates through the first mounting through hole, the detection pin can be movably arranged relative to the first mounting through hole along the central axis of the first mounting through hole, the detection pin is provided with a first position and a second position, and when the detection pin is located at the first position, the annular part is abutted against the bottom end of the detection pin; when the detection pin is located at the second position, the ring-shaped member is disengaged from the detection pin.

Furthermore, the press-fitting device also comprises a position sensor arranged on the outer wall surface of the mounting sleeve, and when the detection pin is positioned at the first position, the position sensor is contacted with the upper end of the detection pin; when the detection pin is located at the second position, the position sensor is disengaged from the detection pin.

Furthermore, the press-fitting device further comprises an installation component connected with the installation sleeve, a second installation through hole corresponding to the first installation through hole is formed in the installation component, and one end, penetrating out of the first installation through hole, of the detection pin penetrates out of the second installation through hole.

Furthermore, the press fitting device further comprises a first elastic part, the first elastic part is used for applying an acting force for enabling the detection pin to move to the second position, the first installation through hole is a stepped hole and comprises a first hole section and a second hole section, the hole diameter of the first hole section is sequentially reduced, the hole diameter of the second installation through hole section is sequentially increased, and an accommodating cavity for installing the first elastic part is formed by the first hole section and the fourth hole section in a surrounding mode.

Furthermore, an avoiding groove for avoiding the clamping jaw is arranged on the outer wall surface of the pressure applying head.

Further, the press-fitting device further comprises: the mounting seat is connected with the press mounting shaft; and the second elastic piece is arranged between the mounting seat and the mounting sleeve and is used for applying acting force to the mounting sleeve to enable the mounting sleeve to be far away from the mounting seat.

Furthermore, the press fitting device further comprises an installation component connected with the installation sleeve, at least two installation grooves which are in one-to-one correspondence with the at least two clamping jaws are formed in the installation component, at least two pivot shafts which are in one-to-one correspondence with the at least two clamping jaws are further included, and the clamping jaws are installed in the installation grooves through the pivot shafts.

Use the technical scheme of the utility model, the jack catch that utilizes a plurality of intervals to set up presss from both sides the outer peripheral face of pressing from both sides the ring unit of treating the installation and realizes treating the tight locate function of clamp of the ring unit of installation, when external force acts on the pressure equipment axle, the pressure head is exerted to pressure equipment under the axle, the pressure equipment axle with exert pressure first move down, make the step portion of exerting the pressure head and the up end butt contact of the ring unit of treating the installation, under the effect of external force, the head that exerts pressure continues move down, the step portion pushes down the up end of the ring unit of treating the installation, make the ring unit of treating the installation and exert pressure first move down, utilize the pressure head of exerting like this to progressively impress the ring unit in the mounting hole corresponding with the. When the outer ring of the bearing is pressed and installed by the pressing and installing device, the clamping jaws clamp and position the outer peripheral surface of the outer ring to be installed, and the step parts press and install the upper end surface of the outer ring to be installed, so that the condition that the inner conical surface is easy to damage due to the fact that the pressing head is adopted to contact with the inner conical surface of the outer ring to be installed to perform pressing and installing positioning in the related technology is avoided, the service life of the tapered roller bearing is guaranteed, and meanwhile the assembling efficiency of the tapered roller bearing is improved.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment of a press-fitting device according to the present invention;

fig. 2 shows a cross-sectional view of the press-fitting apparatus of fig. 1; and

fig. 3 shows a close-up view of the press-fitting device of fig. 2.

Wherein the figures include the following reference numerals:

10. pressing the assembly; 11. pressing and mounting the shaft; 12. applying a pressure head; 121. a step portion; 122. a first mounting through hole; 1221. a first bore section; 1222. a second bore section; 123. an avoidance groove; 124. a cylinder; 125. a cone; 20. a ring to be installed; 30. installing a sleeve; 31. a mounting member; 311. a second mounting through hole; 3111. a third bore section; 3112. a fourth bore section; 32. mounting grooves; 40. a claw; 50. an elastic portion; 60. a detection pin; 61. a first pin; 62. a second pin; 70. a position sensor; 80. a first elastic member; 90. a mounting seat; 100. a second elastic member; 110. a support frame; 120. a pivot shaft.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

The utility model discloses an in the embodiment of the utility model, treat that ring unit 20 of installation is tapered roller bearing's outer lane. The pressure equipment device is used for in the mounting hole of outer lane pressure equipment to the outer lane with tapered roller bearing's outer lane, because the interior conical surface of outer lane will cooperate with tapered roller, consequently the surface quality requirement of the interior conical surface is very high, does not allow to have and damages or wearing and tearing, in order to guarantee the surface quality of the interior conical surface of outer lane, the utility model provides a pressure equipment device installs the outer lane in the mounting hole of outer lane through the pressure equipment mode of carrying out the tight locate mode of clamp to the outer face of cylinder in outer lane and through the up end of pushing down the outer lane. In the whole installation process of the outer ring, the pressure applying head 12 can not contact the inner conical surface of the outer ring of the tapered roller bearing, so that the damage and the abrasion of the inner conical surface of the outer ring are avoided, the assembly quality of the tapered roller bearing is further improved, and the service life of the tapered roller bearing is prolonged. Of course, the press-fitting device is not limited to the press-fitting of the tapered roller bearing outer ring, and can also be applied to the press-fitting of other annular parts, such as the press-fitting of other annular parts, for example, the cylindrical roller bearing outer ring or the sliding bearing outer ring.

As shown in fig. 1 to 3, the present invention provides a press-fitting device, which includes a press-fitting assembly 10, a mounting sleeve 30 and a clamping portion, wherein the press-fitting assembly includes a press-fitting shaft 11 and a pressing head 12 connected to each other, and the pressing head 12 has a step portion 121 for supporting a ring member 20 to be mounted; the mounting sleeve 30 is arranged on the periphery of a part of the press fitting assembly 10, and the press fitting assembly 10 is movably arranged relative to the mounting sleeve 30; the clamping part comprises at least two clamping jaws 40, the clamping jaws 40 are pivotally connected with one end of the mounting sleeve 30 close to the pressure applying head 12, and the at least two clamping jaws 40 are arranged at intervals along the circumferential direction of the mounting sleeve 30; the clamping part at least has a locking state, when the clamping part is in the locking state, the claws 40 move towards one side close to the press fitting assembly 10, and the claws 40 are in abutting contact with the outer peripheral surface of the ring-shaped part to be installed so as to clamp the ring-shaped part 20 to be installed in the circumferential direction; when an external force acts on the press-fitting shaft 11, the pressing head 12 can drive the ring-shaped member 20 to be mounted to move away from the press-fitting shaft 11.

In the above arrangement, the clamping jaws 40 clamp the outer circumferential surface of the ring-shaped element 20 to be mounted to achieve the clamping and positioning function of the ring-shaped element 20 to be mounted, when an external force acts on the press-mounting shaft 11, the press-mounting shaft 11 presses the press-applying head 12 downward, the press-mounting shaft 11 and the press-applying head 12 move downward together, so that the step portion 121 of the press-applying head 12 is in abutting contact with the upper end surface of the ring-shaped element 20 to be mounted, the press-applying head 12 continues to move downward under the action of the external force, the step portion 121 presses the upper end surface of the ring-shaped element 20 to be mounted, the ring-shaped element 20 to be mounted moves downward together with the press-applying head 12, and thus the press-applying head 12 gradually presses the ring-shaped element 20. In the installation process, the outer peripheral surface of the annular piece 20 to be installed is clamped and positioned by the aid of the at least two clamping claws 40, and the upper end face of the annular piece 20 to be installed is pressed and installed by the aid of the step portion 121, so that the problem that the inner conical surface is easily damaged due to the fact that the pressing head 12 is used for pressing and positioning in a contact mode with the inner conical surface of the annular piece 20 to be installed in the related art is solved, the service life of the tapered roller bearing is prolonged, and the assembly efficiency of the tapered roller bearing is improved.

As shown in fig. 1 to 3, in the embodiment of the present invention, the press-fitting device further includes at least two elastic portions 50 corresponding to the at least two claws 40 one to one, and the elastic portions 50 are used for applying an acting force to the claws 40 to make them in the locking state.

In the above arrangement, the clamping and positioning functions of the ring-shaped element 20 to be mounted can be realized only by the at least two clamping jaws 40, and certainly, the larger the number of the clamping jaws 40 is, the larger the clamping area between the clamping part and the ring-shaped element 20 to be mounted is, so that the clamping capacity of the clamping jaws 40 on the ring-shaped element 20 to be mounted is stronger, and the clamping and positioning functions of the press-fitting device on the ring-shaped element 20 to be mounted can be better ensured.

When the ring-shaped member 20 to be installed is clamped in the clamping jaws 40, the outer periphery of the ring-shaped member 20 to be installed is abutted against the clamping ends of the clamping jaws 40, so that the clamping jaws 40 are outwards expanded, the clamping jaws 40 apply an acting force to the elastic parts 50, the elastic parts 50 are compressed, and the elastic parts 50 always apply a reaction force to the clamping jaws 40, so that the clamping jaws 40 contract to clamp the ring-shaped member 20 to be installed. In this way, the ring 20 to be mounted is always in a clamped state. When the annular part 20 to be installed has slight lateral deviation under the action of external force, the claws 40 can also deviate along with the annular part 20 to be installed, so that the floating clamping function of the press-fitting device on the annular part 20 to be installed is realized.

It should be noted that even if some of the plurality of claws 40 are contracted by the lateral biasing force (i.e. the claws 40 are moved to the side close to the pressing head 12), as long as the contraction amount of the part of claws 40 is smaller than the expansion amount of the part of claws 40 after the ring member 20 to be mounted, the elastic portion 50 is still compressed, and a reaction force that causes the claws 40 to contract to clamp the ring member 20 to be mounted is always applied to the claws 40. In this way, the ring-shaped member 20 to be mounted is always in the clamped state, thereby ensuring the floating clamping function of the press-fitting device for the ring-shaped member 20 to be mounted.

It should be noted that, because there is a slight deviation between the center line of the ring-shaped element 20 to be mounted and the center line of the mounting hole, when the ring-shaped element 20 to be mounted slides into the mounting hole under the guiding action of the bottom fillet, the ring-shaped element 20 to be mounted slightly deviates, and the claws 40 also deviate along with the ring-shaped element 20 to be mounted, so that the claws 40 can keep the clamping function of the ring-shaped element 20 to be mounted at any time while the ring-shaped element 20 to be mounted and the mounting hole are concentrically adjusted, thereby achieving the floating centering function of the press-fitting device for the ring-shaped element 20 to be mounted.

Specifically, as shown in fig. 1 and fig. 2, in the embodiment of the present invention, the press-fitting device includes three jaws 40, and each jaw 40 is correspondingly provided with an elastic portion 50. The three claws 40 are arranged at regular intervals in the circumferential direction of the mounting sleeve 30.

In the above arrangement, the three clamping jaws 40 and the ring-shaped member 20 to be mounted are arranged at three positions and uniformly distributed at intervals along the circumferential direction of the mounting sleeve 30, so that the clamping area is large, the clamping areas are uniformly distributed, and the clamping capacity of the three clamping jaws 40 on the ring-shaped member 20 to be mounted is high, thereby well ensuring the clamping and positioning functions of the press-fitting device on the ring-shaped member 20 to be mounted. In addition, the three elastic parts 50 can also well realize the floating clamping function of the press-fitting device on the ring-shaped member 20 to be installed.

Specifically, the elastic portion 50 is a spring plunger, which is a standard component, and is convenient to purchase and replace. Of course, in an alternative embodiment not shown in the drawings of the present invention, an elastic sheet may be used as the elastic portion 50 according to actual conditions.

As shown in fig. 1 and 2, in the embodiment of the present invention, the press-fitting device further includes a detection pin 60; a first mounting through hole 122 for mounting the detection pin 60 is formed in the pressing head 12 of the press-fitting assembly 10, at least one end of the detection pin 60 penetrates through the first mounting through hole 122, the detection pin 60 can be movably arranged relative to the first mounting through hole 122 along the central axis of the first mounting through hole 122, the detection pin 60 has a first position and a second position, and when the detection pin 60 is located at the first position, the ring-shaped member 20 to be mounted abuts against the bottom end of the detection pin 60; when the detection pin 60 is located at the second position, the ring 20 to be mounted is disengaged from the detection pin 60.

In the above arrangement, when the detection pin 60 is in the first position, the ring 20 to be mounted is already loaded into the press-fitting device, and when the detection pin 60 is in the second position, the ring 20 to be mounted is already completely press-fitted into the mounting hole. That is, the field installer can determine whether the ring-shaped member 20 to be installed is correctly installed in the press-fitting device or is completely pressed in the installation hole by observing different positions of the detection pins 60, so that the field installer can accurately know the installation condition of the ring-shaped member 20 to be installed, and the assembly yield of the ring-shaped member 20 to be installed is improved.

As shown in fig. 1 and 2, in the embodiment of the present invention, the press-fitting device further includes a position sensor 70 disposed on the outer wall surface of the mounting sleeve 30, and when the detecting pin 60 is located at the first position, the position sensor 70 is in contact with the upper end of the detecting pin 60; when the detection pin 60 is located at the second position, the position sensor 70 is disengaged from the detection pin 60.

In the above arrangement, whether or not the detection pin 60 is in the second position is determined by the position sensor 70. When the detection pin 60 is in the first position, it indicates that the ring 20 to be mounted has been mounted to the step 121 of the pressing head 12 of the press-fitting apparatus; when the sensing pin is in the second position, it indicates that the ring 20 to be installed has been installed into the installation hole. Therefore, errors caused by human eye observation are avoided, field installation personnel can know the installation condition of the ring-shaped part 20 to be installed more accurately, and the assembly qualification rate of the ring-shaped part 20 to be installed is further improved.

Specifically, as shown in fig. 1 and fig. 2, in the embodiment of the present invention, a supporting frame 110 is disposed on the outer wall surface of the mounting sleeve 30, and the supporting frame 110 is fixed on the outer wall surface of the mounting sleeve 30 by screws. The position sensor 70 is fixed to the support bracket 110, and the position sensor 70 is located above the detection pin 60. This enables the relative position of the detection pin 60 and the position sensor 70 to be defined, thereby ensuring the test accuracy of the position sensor 70.

Of course, in an alternative embodiment of the present invention, which is not shown in the drawings, the position sensor 70 may be directly fixed to the outer wall surface of the mounting sleeve 30 according to the actual situation.

Of course, in an alternative embodiment not shown in the drawings of the present invention, the support frame 110 may be directly welded to the outer wall surface of the mounting sleeve 30 according to the actual situation.

As shown in fig. 1 to fig. 3, in the embodiment of the present invention, the press-fitting device further includes a mounting member 31 connected to the mounting sleeve 30, the mounting member 31 is provided with a second mounting through hole 311 corresponding to the first mounting through hole 122, and one end of the detection pin 60 penetrating through the first mounting through hole 122 penetrates through the second mounting through hole 311.

In the above arrangement, the first mounting through hole 122 and the second mounting through hole 311 provide an accommodating space for the detection pin 60, and in addition, the hole walls of the first mounting through hole 122 and the second mounting through hole 311 have a guiding function, so that the detection pin 60 can be ensured to move smoothly in the vertical direction, and the lateral deviation of the detection pin 60 is prevented, thereby ensuring the position accuracy of the detection pin 60 at the first position and the second position, so that the position sensor 70 can be ensured to accurately detect the actual mounting condition of the ring-shaped member 20 to be mounted, and further ensuring the mounting qualification rate of the ring-shaped member 20 to be mounted.

Specifically, as shown in fig. 2 and 3, the press-fitting device further includes a first elastic member 80, and the first elastic member 80 is configured to apply a force to the detection pin 60 to move it to the second position. First installation through-hole 122 is the step hole, and first installation through-hole 122 includes first hole section 1221 and second hole section 1222 that the aperture reduces in proper order, and second installation through-hole 311 includes third hole section 3111 and fourth hole section 3112 that the aperture increases in proper order, and wherein, first hole section 1221 and fourth hole section 3112 enclose into the chamber that holds that is used for installing first elastic component 80.

In the above arrangement, when the ring-shaped member 20 to be mounted is mounted on the press-fitting device, the lower end of the detection pin 60 abuts against the inner conical surface of the ring-shaped member 20 to be mounted, and when the press head 12 presses down the ring-shaped member 20 to be mounted, the press-fitting assembly 10 moves downward relative to the mounting sleeve 30, so that the first elastic member 80 is compressed, and the first elastic member 80 applies a pre-pressure to the detection pin 60 to move it to the second position. When the ring-shaped element 20 to be mounted is completely press-fitted in the mounting hole, at this time, the detection pin 60 is not in contact with the inner conical surface of the ring-shaped element 20 to be mounted, and the first elastic element 80 moves downward under the action of the pre-pressure force and is reset to the initial position where the ring-shaped element 20 to be mounted is not mounted, so that the next ring-shaped element 20 to be mounted is conveniently mounted, and the assembly efficiency of the press-fitting device is improved.

Specifically, as shown in fig. 2 and 3, the detection pin 60 includes two first pins 61 and a second pin 62 disposed between the two first pins 61. Each first pin 61 all is connected with second pin 62, and specifically, second pin 62 wears to establish in the holding intracavity that first hole section 1221 and fourth hole section 3112 enclose, and two first pins 61 correspond respectively to wear to establish in second hole section 1222 and third hole section 3111.

In the above arrangement, the step surfaces formed by the first hole segment 1221 and the second hole segment 1222 in the first mounting through hole 122 and the step surfaces formed by the third hole segment 3111 and the fourth hole segment 3112 in the second mounting through hole 311 can limit the position where the detection pin 60 moves up and down, so that the position accuracy of the detection pin 60 at the first position and the second position can be ensured, and thus the position sensor 70 can accurately detect the actual mounting condition of the ring-shaped component 20 to be mounted, and further ensure the mounting yield of the ring-shaped component 20 to be mounted.

Preferably, the first pin 61 and the second pin 62 are coaxially disposed.

As shown in fig. 1 and 2, in the embodiment of the present invention, an avoiding groove 123 for avoiding the claw 40 is provided on the outer wall surface of the pressing head 12. In the above arrangement, the avoiding groove 123 can prevent the claw 40 from interfering with the pressing head 12 when rotating around the pivot shaft 120, so as to provide a space for the rotation of the claw 40, and thus the claw 40 can be ensured to normally open or contract, thereby ensuring the clamping and positioning functions of the press-fitting device on the ring-shaped member 20 to be mounted.

Specifically, as shown in fig. 1 and 2, the pressing head 12 includes a cylinder 124 and a cone 125 connected to the cylinder 124, wherein the cylinder 124 is disposed above the cone 125, and the cylinder 124 and the cone 125 are a one-piece molded structure. The outer diameter of the cylindrical body 124 is larger than that of the large end of the cone 125, so that the junction of the cylindrical body 124 and the cone 125 forms the step 121.

Preferably, the cylinder 124 is coaxially disposed with the cone 125.

Of course, in alternative embodiments not shown in the drawings of the present invention, the cylinder 124 and the cone 125 may be provided as a separate connection, such as a threaded connection or a fastener connection, depending on the actual situation.

As shown in fig. 1 and fig. 2, in the embodiment of the present invention, the press-fitting device further includes a mounting seat 90 and a second elastic member 100, wherein the mounting seat 90 is connected to the press-fitting shaft 11; a second resilient member 100 is disposed between mounting block 90 and mounting sleeve 30, and second resilient member 100 is used to apply a force to mounting sleeve 30 that urges it away from mounting block 90.

In the above arrangement, after the press-fitting device finishes press-fitting the ring-shaped element 20 to be mounted, the second elastic element 100 applies an acting force to the mounting sleeve 30 to make the mounting sleeve 30 away from the mounting seat 90, so that the mounting sleeve 30 moves downward and returns to the initial position where the ring-shaped element 20 to be mounted is not mounted, and the press-fitting device is convenient to press-fit the next ring-shaped element 20 to be mounted, thereby improving the press-fitting efficiency of the press-fitting device.

As shown in fig. 1 and fig. 2, in the embodiment of the present invention, the press-fitting device further includes a mounting member 31 connected to the mounting sleeve 30, at least two mounting grooves 32 are formed in the mounting member 31 and are disposed in a one-to-one correspondence with at least two claws 40, the press-fitting device further includes at least two pivot shafts 120 disposed in a one-to-one correspondence with at least two claws 40, and the claws 40 are mounted in the mounting grooves 32 through the pivot shafts 120.

In the above arrangement, the pivot shaft 120 can pivotally connect the jaws 40 to the mounting member 31, and the jaws 40 can rotate around the pivot shaft 120 under the action of external force, so that the jaws 40 can clamp the outer circumferential surface of the ring-shaped member 20 to be mounted, thereby ensuring the clamping and positioning functions of the press-fitting device on the ring-shaped member 20 to be mounted. The mounting grooves 32 are used for mounting the clamping jaws 40 and provide rotating spaces for the clamping jaws 40, the plurality of clamping jaws 40 are distributed along the circumferential direction of the mounting sleeve 30 at intervals, the clamping area is large, the clamping areas are uniformly distributed, the clamping capacity of the plurality of clamping jaws 40 for the ring-shaped piece 20 to be mounted is high, and the clamping and positioning functions of the press-fitting device for the ring-shaped piece 20 to be mounted can be well guaranteed.

Specifically, as shown in fig. 1 and fig. 2, the mounting sleeve 30 is a cylindrical structure, the mounting sleeve 30 is sleeved on the outer circumference of the press-fitting shaft 11, the mounting member 31 is a plate-shaped structure, two plate-shaped bosses are arranged on the side wall of the plate-shaped structure, the end surface of the mounting member 31 is triangular, the two plate-shaped bosses and the mounting sleeve 30 are integrally formed, the two plate-shaped bosses are arranged at intervals on the side wall, and the two plate-shaped bosses and the side wall form a mounting groove 32. The lower end of the mounting sleeve 30 is connected with the upper end of the mounting member 31, the axis of the mounting sleeve 30 is overlapped with the axis of the mounting member 31, and the mounting sleeve 30 and the mounting member 31 are of an integrally formed structure.

According to the arrangement, the three mounting grooves 32 can be uniformly arranged in the circumferential direction of the mounting member 31 at intervals, so that the three clamping jaws 40 can be uniformly arranged in the circumferential direction of the mounting member 31 at intervals, three clamping positions formed by the clamping jaws 40 and the outer circumferential surface of the ring-shaped member 20 to be mounted are uniformly distributed at intervals, the force on the ring-shaped member 20 to be mounted is uniform, the clamping capacity of the clamping jaws 40 on the ring-shaped member 20 to be mounted is strong, and the clamping and positioning functions of the press-fitting device on the ring-shaped member 20 to be mounted can be well guaranteed.

The following describes the process of press-fitting the outer ring of the tapered roller bearing by the press-fitting device with reference to fig. 1 to 3:

utilize the utility model discloses a during pressure equipment device pressure equipment tapered roller bearing's outer lane, at first, install pressure head 12 by artifical or external automation equipment with tapered roller bearing's outer lane. At this time, one end of the claw 40 close to the pressing head 12 abuts against the circumferential surface of the outer ring, the outer ring presses the claw 40 outwards, so that the claw 40 is opened, and the claw 40 clamps the outer ring under the acting force of the elastic plunger. The three jaws 40 together grip the outer race so that it is clamped in place on the pressure applicator head 12. Then, under the action of an external force, the pressing head 12 moves downwards, the step part 121 of the pressing head 12 is abutted against the upper end face of the outer ring, the pressing head 12 continues to move downwards, the lower end of the outer circumferential surface of the outer ring is gradually contacted with the hole wall of the mounting hole of the outer ring, at the moment, if the central line of the outer ring and the central line of the mounting hole have slight deviation, the outer ring deviates laterally under the action of arc guiding of the lower end of the outer ring, part of the clamping jaws 40 retract under the action of an elastic plunger, and part of the clamping jaws 40 open under the action of the lateral deviation, so that the floating centering function of the press-fitting device during press. After the outer ring is concentric with the mounting hole, the pressing head 12 continues to press the outer ring downwards, when the outer ring is partially mounted in the mounting hole, the clamping jaws 40 moving downwards along with the pressing head 12 abut against the periphery of the mounting hole, the clamping jaws 40 cannot move downwards along with the pressing head 12, at this time, the pressing head 12 moves downwards relative to the clamping jaws 40, the clamping jaws 40 gradually separate from the outer circumferential surface of the outer ring, meanwhile, the detection pin 60 gradually moves downwards under the action of the first elastic piece 80, when the detection pin 60 is located at the second position, the pressing device stops applying pressure to the pressing device, and the pressing device completely presses the outer ring in the mounting hole.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the clamping positions of the three clamping jaws and the ring piece to be installed are distributed at three positions and are evenly distributed at intervals along the circumferential direction of the installation sleeve, so that the clamping area is large, the clamping areas are evenly distributed, the clamping capacity of the ring piece to be installed is stronger by the clamping jaws, and the clamping and positioning functions of the press-fitting device on the ring piece to be installed can be well guaranteed. The step part presses down the upper end face of the ring-shaped piece to be installed, so that the ring-shaped piece to be installed and the pressing head move downwards together, and the pressing head gradually presses the ring-shaped piece to be installed into the corresponding installation hole, so that the pressing function of the ring-shaped piece to be installed is realized. In the installation process, the clamping jaws clamp and position the outer peripheral surfaces of the ring pieces to be installed, the step parts press the upper end faces of the ring pieces to be installed, and therefore the situation that the inner conical faces are damaged due to the fact that press heads are adopted to press and position the inner conical faces of the ring pieces to be installed in a contact mode in the prior art is avoided, the service life of the tapered roller bearing is guaranteed, and meanwhile the assembly efficiency of the tapered roller bearing is improved.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A press-fitting device, characterized in that the press-fitting device comprises:

the press-fitting device comprises a press-fitting assembly (10) and a pressing head (12), wherein the press-fitting assembly comprises a press-fitting shaft (11) and the pressing head (12) which are connected, and the pressing head (12) is provided with a step part (121) for supporting the ring piece (20) to be installed;

the mounting sleeve (30) is arranged on the periphery of a part of the press-fitting assembly (10), and the press-fitting assembly (10) is movably arranged relative to the mounting sleeve (30);

the clamping part comprises at least two clamping jaws (40), the clamping jaws (40) are pivotally connected with one end, close to the pressure applying head (12), of the mounting sleeve (30), and the at least two clamping jaws (40) are arranged at intervals along the circumferential direction of the mounting sleeve (30);

the clamping part at least has a locking state, when the clamping part is in the locking state, the clamping jaws (40) move towards one side close to the press-fitting assembly (10), and the clamping jaws (40) are in abutting contact with the outer peripheral surface of the ring-shaped piece (20) to be installed so as to clamp the ring-shaped piece (20) to be installed in the circumferential direction; when external force acts on the press-fitting shaft (11), the press-applying head (12) can drive the ring-shaped piece (20) to be installed to move towards one side far away from the press-fitting shaft (11).

2. A press-fitting device as claimed in claim 1, further comprising at least two resilient portions (50) provided in one-to-one correspondence with said at least two jaws (40), said resilient portions (50) being adapted to apply a force to said jaws (40) to bring them into said locked condition.

3. A press-fitting device as claimed in claim 2, characterized in that the press-fitting device comprises three jaws (40) and the elastic portions (50) corresponding to the three jaws (40) one by one, wherein the three jaws (40) are arranged at regular intervals in the circumferential direction of the mounting sleeve (30).

4. A press-fitting device according to any one of claims 1 to 3, further comprising a detection pin (60); a first mounting through hole (122) for mounting the detection pin (60) is formed in the pressing head (12) of the pressing assembly (10), at least one end of the detection pin (60) penetrates through the first mounting through hole (122), the detection pin (60) can be movably arranged relative to the first mounting through hole (122) along the central axis of the first mounting through hole (122), the detection pin (60) has a first position and a second position, and when the detection pin (60) is located at the first position, the ring-shaped part (20) to be mounted is abutted against the bottom end of the detection pin (60); when the detection pin (60) is in the second position, the ring (20) to be mounted is disengaged from the detection pin (60).

5. A press-fitting device according to claim 4, further comprising a position sensor (70) provided on an outer wall surface of said mounting sleeve (30), said position sensor (70) being in contact with an upper end of said detecting pin (60) when said detecting pin (60) is located at said first position; when the detection pin (60) is located at the second position, the position sensor (70) is disengaged from the detection pin (60).

6. A press-fitting device according to claim 4, further comprising a mounting member (31) connected to the mounting sleeve (30), wherein a second mounting through hole (311) corresponding to the first mounting through hole (122) is provided in the mounting member (31), and one end of the detection pin (60) penetrating through the first mounting through hole (122) penetrates through the second mounting through hole (311).

7. A press-fitting apparatus according to claim 6, further comprising a first resilient member (80), said first resilient member (80) being adapted to apply a force to said detection pin (60) to move it to said second position, said first mounting through-hole (122) being a stepped hole, said first mounting through-hole (122) including a first hole section (1221) and a second hole section (1222) having successively smaller hole diameters, said second mounting through-hole (311) including a third hole section (3111) and a fourth hole section (3112) having successively larger hole diameters, wherein said first hole section (1221) and said fourth hole section (3112) enclose a receiving cavity for receiving said first resilient member (80).

8. A press-fitting device according to any one of claims 1 to 3, characterised in that an escape groove (123) for escaping said claw (40) is provided on an outer wall surface of said press-fitting head (12).

9. A press-fitting device according to any one of claims 1 to 3, further comprising:

the mounting seat (90) is connected with the press-mounting shaft (11);

a second resilient member (100) disposed between the mounting seat (90) and the mounting sleeve (30), the second resilient member (100) being configured to apply a force to the mounting sleeve (30) that urges it away from the mounting seat (90).

10. A press-fitting device according to any one of claims 1 to 3, further comprising a mounting member (31) connected to the mounting sleeve (30), wherein the mounting member (31) is provided with at least two mounting grooves (32) which are provided in one-to-one correspondence with at least two of the jaws (40), the press-fitting device further comprises at least two pivot shafts (120) which are provided in one-to-one correspondence with at least two of the jaws (40), and the jaws (40) are mounted in the mounting grooves (32) through the pivot shafts (120).

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