CN219074827U

CN219074827U - Hub bearing frock of colding pressing

Info

Publication number: CN219074827U
Application number: CN202320043337.5U
Authority: CN
Inventors: 赵从阳; 刘康; 柳宏军; 冯文和; 彭江
Original assignee: Jinan Yiji Science And Trade Co ltd
Current assignee: Jinan Yiji Science And Trade Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-05-26
Anticipated expiration: 2033-01-04

Abstract

The utility model relates to a hub bearing cold pressing tool which comprises a fixing frame, wherein a positioning mechanism and a pressing mechanism are arranged on the fixing frame; the positioning mechanism comprises a first telescopic cylinder connected to the fixed frame, the output end of the first telescopic cylinder is connected with a conical head, a fixed sleeve connected with the fixed frame or the cylinder body of the first telescopic cylinder is arranged outside the conical head, a plurality of through holes are formed in the fixed sleeve along the circumferential direction of the fixed sleeve, a clamping block is arranged in each through hole, an elastic ring is sleeved outside the clamping block on the fixed sleeve, and when the conical head is driven by the first telescopic cylinder to move along the axial direction of the fixed sleeve, the clamping block has a first state of being protruded upwards and a second state of being retracted along with the elastic ring; the compressing mechanism comprises a second telescopic cylinder connected to the fixing frame, the output end of the second telescopic cylinder is connected with a compressing sleeve, and the compressing sleeve is coaxially arranged outside the fixing sleeve. The cold pressing tool for the hub bearing can be used for rapidly installing the hub bearing on an axle in place in a labor-saving manner.

Description

Hub bearing frock of colding pressing

Technical Field

The utility model relates to the field of axle processing, in particular to a cold pressing tool for a hub bearing.

Background

In axle machining, one of the processes is to mount the hub bearing on the axle shaft. When the hub bearing is installed, the hub bearing is required to be sleeved on the axle shaft, then the hub bearing is pressed and installed, manual pressing is adopted at present, time and labor are wasted, and the situation that the hub bearing is not installed in place exists.

Disclosure of Invention

The utility model provides a cold pressing tool for a hub bearing, which can quickly and quickly install the hub bearing on an axle shaft in a labor-saving manner in order to make up the defects of the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a cold pressing tool for a hub bearing comprises a fixing frame, wherein a positioning mechanism and a pressing mechanism are arranged on the fixing frame;

the positioning mechanism comprises a first telescopic cylinder connected to the fixing frame, the output end of the first telescopic cylinder is connected with a conical head, a fixing sleeve connected with the fixing frame or the cylinder body of the first telescopic cylinder is arranged outside the conical head, a plurality of through holes are formed in the fixing sleeve along the circumferential direction of the fixing sleeve, a clamping block is arranged in each through hole, an elastic ring is sleeved outside the fixing sleeve, and when the conical head is driven by the first telescopic cylinder to move along the axial direction of the fixing sleeve, the clamping block is in a first state of being outwards protruded upwards along the radial direction of the fixing sleeve, and is in a second state of being inwards retracted along the radial direction of the fixing sleeve along with the elastic ring;

the compressing mechanism comprises a second telescopic cylinder connected to the fixing frame, the output end of the second telescopic cylinder is connected with a compressing sleeve, the compressing sleeve is coaxially arranged outside the fixing sleeve, and the compressing sleeve can be driven by the second telescopic cylinder to axially move relative to the fixing sleeve.

In the axle processing, a thread bush is arranged at the axle end of the axle and can be matched with a cold pressing tool to finish the installation of a hub bearing, specifically, the cold pressing tool moves to the axle to the fixed bush to extend into the thread bush, and the pressing bush is positioned outside the thread bush; then the conical head is driven to move through the first telescopic cylinder, so that the clamping block on the fixing sleeve is jacked to be clung to the inner side of the threaded sleeve, and the relative fixation between the fixing sleeve and the threaded sleeve, namely the relative fixation between the fixing sleeve and the axle shaft, is completed; the second telescopic cylinder drives the compression sleeve to act so as to push the hub bearing to be in place and mounted on the axle shaft; and then the first telescopic cylinder drives the conical head to reversely move, so that the clamping block retracts away from the inner side of the threaded sleeve under the action of the elastic ring, and then the threaded sleeve is withdrawn, so that the primary hub bearing is installed.

Furthermore, the first telescopic cylinder and the second telescopic cylinder are both hydraulic cylinders, and the hydraulic cylinders have enough thrust.

Furthermore, the clamping block outer side and the fixed sleeve outer side corresponding to the elastic ring are provided with embedded grooves, and the elastic ring can be well hidden by the arrangement, so that the elastic ring is prevented from being extruded.

Further, the elastic ring can be a spring ring.

Furthermore, the outer side of the inner end of the clamping block is provided with a first slope surface with an inward tapered outer diameter, and the design can be matched with the outer end of the inner side of the threaded sleeve so as to more conveniently withdraw the fixed sleeve from the threaded sleeve.

Further, a second slope surface with an outward tapered outer diameter is formed on the outer side of the outer end of the fixing sleeve, and the fixing sleeve is convenient to enter the threaded sleeve before the pressing operation is started.

Further, the compaction sleeve is provided with a lightening hole.

Furthermore, the fixed sleeve is detachably connected with the fixed frame or the cylinder body of the first telescopic cylinder, and different fixed sleeves can be replaced so as to adapt to axle installation with different sizes.

Furthermore, the wheel hub bearing further comprises a balancer, and the fixing frame is hung through the balancer, so that the fixing frame can be pulled in a labor-saving mode, and the wheel hub bearing is installed.

Further, the device also comprises a display operation screen arranged on the fixing frame, and the display operation screen can be operated to start the first telescopic cylinder and the second telescopic cylinder to work.

The utility model adopts the technical proposal and has the advantages that: this hub bearing frock of colding pressing can carry out relative fixation through positioning mechanism with it and axle, through hold-down mechanism, positioning mechanism and mount cooperation, can make hold-down mechanism bulldoze the hub bearing on the axle to with the hub bearing laborsaving, quick, in place install on the axle, improved axle machining efficiency and machining accuracy greatly.

Through to fixed cover and fixture block design, the fixture block that has first domatic can make fixed cover withdraw from smoothly in the thread bush, and the fixed cover that has the second domatic can make it stretch into in the thread bush fast, helps improving axle machining efficiency.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic view of the exposed structure of the fixing sleeve in FIG. 1;

FIG. 3 is a schematic cross-sectional view of the structure of FIG. 1;

FIG. 4 is a schematic view of the bit and retaining sleeve of FIG. 3 mated to a second condition;

FIG. 5 is a schematic view of the bit and retaining sleeve of FIG. 4 mated to a first state;

fig. 6 is a schematic view of the structure of fig. 5 in a mating position with a threaded sleeve.

In the figure, 1, a fixing frame, 2, a first telescopic cylinder, 3, a conical head, 4, a fixing sleeve, 5, a second telescopic cylinder, 6, a pressing sleeve, 7, a thread sleeve, 8, an operation display screen, 9 and a handle;

21. the first cylinder sleeve, 22 and the first piston rod; 51. the second cylinder sleeve, 52 and the second piston rod; 41. the clamping block, 42, the elastic ring, 43, the embedded groove, 411, the first slope, 61 and the lightening hole.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and thus the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," etc. indicate or refer to an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", second "may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature "an" may be a direct contact of the first and second features, or an indirect contact of the first and second features through an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

1-6, in this embodiment, the cold pressing tool for hub bearings includes a fixing frame 1, and a positioning mechanism and a pressing mechanism are arranged on the fixing frame 1; the positioning mechanism comprises a first telescopic cylinder 2 connected to a fixed frame 1, the output end of the first telescopic cylinder 2 is connected with a conical head 3, a fixed sleeve 4 connected with the fixed frame 1 or the cylinder body of the first telescopic cylinder 2 is arranged outside the conical head 3, a plurality of through holes are formed in the fixed sleeve 4 along the circumferential direction of the fixed sleeve, a clamping block 41 is arranged in each through hole, an elastic ring 42 is sleeved outside the clamping block 41 on the fixed sleeve 4, and when the conical head 3 is driven by the first telescopic cylinder 2 to move along the axial direction of the fixed sleeve 4, the clamping block 41 has a first state of being outwards jacked along the radial direction of the fixed sleeve 4 and a second state of inwards retracting along the radial direction of the fixed sleeve 4 along with the elastic ring 42; the compressing mechanism comprises a second telescopic cylinder 5 connected to the fixing frame 1, the output end of the second telescopic cylinder 5 is connected with a compressing sleeve 6, the compressing sleeve 6 is coaxially arranged outside the fixing sleeve 4, and the compressing sleeve 6 can be driven by the second telescopic cylinder 5 so as to axially move relative to the fixing sleeve 4. Wherein the first telescopic cylinder 2 and the second telescopic cylinder 5 can respectively adopt hydraulic cylinders to provide enough power.

In axle processing, screw sleeve 7 is installed to axle head itself, and it can accomplish the installation of wheel hub bearing with cold pressing frock cooperation, and specific installation step is as follows: (1) The cold pressing tool moves to the axle shaft until the fixed sleeve 4 and the conical head 3 extend into the threaded sleeve 7, and the threaded sleeve 7 is positioned between the pressing sleeve 6 and the fixed sleeve 4; (2) The first telescopic cylinder 2 drives the cone head 3 to pull back, so that the clamping block 41 on the fixed sleeve 4 is jacked to a first state tightly attached to the inner side of the threaded sleeve 7, and the relative fixation between the fixed sleeve 4 and the threaded sleeve 7, namely the relative fixation between the fixed sleeve 4 and the axle shaft, is completed; (3) The second telescopic cylinder 5 drives the compression sleeve 6 to act so as to push the hub bearing to be in place and mounted on the axle shaft; (4) The first telescopic cylinder 2 drives the conical head 3 to move reversely, so that the clamping block retracts away from the inner side of the threaded sleeve 7 under the action of the elastic ring 42, and then the clamping block withdraws from the threaded sleeve 7, so that the installation of the hub bearing can be completed once.

Wherein, for the first telescopic cylinder 2 and the second telescopic cylinder 5 which adopt hydraulic cylinders, the compact structure thereof is set as follows: as shown in fig. 3, the first telescopic cylinder 2 comprises a first cylinder sleeve 21 and a first piston rod 22, and the second telescopic cylinder 5 comprises a second cylinder sleeve 51 and a second piston rod 52, wherein the first cylinder sleeve 21 is arranged through the second piston rod 22, i.e. the second piston rod 22 is actually a piston sleeve sleeved on the first cylinder sleeve 21. The second cylinder sleeve 51 is fixedly connected with the fixing frame 1, the first cylinder sleeve 21 is fixedly connected with the second cylinder sleeve 51 to achieve relative fixation with the fixing frame 1, for convenience of the first telescopic cylinder 2, one oil inlet and outlet can be arranged on the side portion of the first cylinder sleeve 21, the other oil inlet and outlet is arranged at the tail end of the first piston rod 22, and communication with an oil cavity is achieved through the opening of the first piston rod 22.

Further, as shown in fig. 4 or 5, in order to better position the elastic ring 42, an embedded groove 43 may be formed at the outer side of the clamping block 41 and the outer side of the fixing sleeve 4, and the elastic ring 42 is installed in the embedded groove 43, so that not only displacement of the elastic ring 42 can be avoided, but also the elastic ring 42 can be better hidden, and is prevented from being extruded between the thread sleeve 7 and the fixing sleeve 4. In particular, the elastic ring 42 may be a spring ring.

Further, as shown in fig. 6, since the inner side of the outer end of the threaded sleeve 7 is designed as an inner slope, in order to enable the fixing sleeve 4 to withdraw from the threaded sleeve 7 smoothly after the compression operation is completed, the outer side of the inner end of the clamping block 41 can be designed as a first slope 411 with an inward tapered outer diameter, so that the fixing sleeve 4 can withdraw from the threaded sleeve 7 smoothly and rapidly.

Further, as shown in fig. 4, in order to improve the fault tolerance of the fixing sleeve 4 extending into the threaded sleeve 7, the outer side of the outer end of the fixing sleeve 4 may be designed as a second slope surface tapered outwards in the outer diameter, so that the fixing sleeve 4 extends into the threaded sleeve 7 quickly and accurately.

Further, a lightening hole 61 may be provided on the pressing sleeve 6 to lighten the cold pressing tool.

Further, the fixing sleeve 4 is detachably connected with the fixing frame 1 or the cylinder body of the first telescopic cylinder 2, and specifically can be fixedly connected with threads, so that the fixing sleeve is convenient to replace, and axle installation with different sizes is suitable.

Further, as shown in fig. 2, a display operation screen 8 is further provided on the fixing frame 1, during operation, a processing personnel can control the first telescopic cylinder 2 and the second telescopic cylinder 5 through the display operation screen 8 so as to complete the press-fitting process, wherein a controller is provided in the display operation screen, the controller is connected with the first telescopic cylinder and the second telescopic cylinder, and the connection between the above components is the connection between conventional electrical elements in the field, and is not repeated herein.

Further, as shown in fig. 2, a handle 9 is further provided at one side of the fixing frame, so as to facilitate pulling the cold pressing tool.

In one embodiment, the cold pressing tool further comprises a balancer, and when the cold pressing tool is specifically arranged, the fixing frame is suspended through the balancer, so that a machining person can drag the fixing frame easily and flexibly, and the installation of the hub bearing is completed quickly and in a labor-saving manner. The balancer is selected from the existing balancer, the balancer structure is not shown in each view, the upper end of the balancer can be fixed on a roof or a roof beam and the like according to the requirement in an actual workshop, and the lower end of the balancer is connected with a fixing frame.

The above embodiments are not to be taken as limiting the scope of the utility model, and any alternatives or modifications to the embodiments of the utility model will be apparent to those skilled in the art and fall within the scope of the utility model.

The present utility model is not described in detail in the present application, and is well known to those skilled in the art.

Claims

1. The cold pressing tool for the hub bearing is characterized by comprising a fixing frame, wherein a positioning mechanism and a pressing mechanism are arranged on the fixing frame;

2. The hub bearing cold press tooling of claim 1, wherein the first and second telescoping cylinders are hydraulic cylinders.

3. The hub bearing cold pressing tool according to claim 1, wherein embedded grooves are formed in the positions, corresponding to the elastic rings, of the outer sides of the clamping blocks and the outer sides of the fixing sleeves.

4. A hub bearing cold press tooling as set forth in claim 3 wherein said elastomeric ring is a spring ring.

5. The hub bearing cold pressing tool according to claim 1, wherein a first slope surface tapered inwards in the outer radial direction is formed on the outer side of the inner end of the clamping block.

6. The hub bearing cold press tooling of claim 1, wherein a second ramp surface tapering outwardly in an outer diameter is formed outboard of the outer end of the stationary sleeve.

7. The hub bearing cold pressing tool according to claim 1, wherein the pressing sleeve is provided with a lightening hole.

8. The hub bearing cold pressing tool according to claim 1, wherein the fixing sleeve is detachably connected with the fixing frame or the cylinder body of the first telescopic cylinder.

9. The hub bearing cold press tooling of claim 1, further comprising a balancer to suspend the mount through the balancer.

10. The hub bearing cold press tooling of claim 1, further comprising a display operation screen disposed on the mount.