CN210025071U

CN210025071U - Water pump bearing shaft ejector pin enclasping device

Info

Publication number: CN210025071U
Application number: CN201920775484.5U
Authority: CN
Inventors: 王达
Original assignee: Aoyibotong Tianjin Water Supply And Drainage Engineering Co Ltd
Current assignee: Aoyibotong Tianjin Water Supply And Drainage Engineering Co Ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-02-07
Anticipated expiration: 2029-05-28

Abstract

The utility model discloses a water pump bearing shaft ejector pin enclasping device, including hydraulic chuck, top tight mechanism, pump body fixing device and base, install the top tight mechanism on the base, pump body fixing device includes quick clamp and anchor clamps body, quick clamp installs on anchor clamps body, anchor clamps body installs on the base, open the through-hole in the middle of the anchor clamps body, top tight mechanism includes hydraulic cylinder and ejector pin, hydraulic cylinder installs on the base, ejector pin and anchor clamps body through-hole clearance fit, hydraulic chuck installs in anchor clamps body bottom surface; the utility model discloses a set up above-mentioned part and realized that water pump bearing pressure equipment in-process ejector pin is stable to be held tightly, prevent effectively that the slip of water pump bearing ejector pin from leading to the problem of water pump bearing rolling part's damage.

Description

Water pump bearing shaft ejector pin enclasping device

Technical Field

The utility model relates to a bearing assembly quality technical field specifically is a device is held tightly to water pump bearing axle ejector pin.

Background

The water pump bearing is an important part in the water pump, and the requirement is very strict during the assembly, because the bearing is a high-precision product, the water pump coupling shaft easily causes damage to the water pump coupling bearing channel if the assembly is improper, and the bearing is damaged. When the bearing is assembled, a special die cannot be used for beating the bearing at will, only a small circle of bearing is stressed when the bearing is pressed into a shaft, and only a large circle of bearing is stressed when a large circle of bearing is pressed. The assembly requires air pressure or hydraulic pressure, and the upper die and the lower die are in a horizontal state during press mounting, if the upper die and the lower die are inclined, the bearing channel is damaged due to stress, and the bearing generates abnormal sound.

At present, other parts are pressed on a water pump bearing, and a wedge block mechanism is adopted to ensure that the end face of the bearing is firmly attached to the ejector rod every time. The water pump assembly is placed on the fixture body, and the pressing mechanism presses the water pump assembly tightly. The wedge block cylinder moves to drive the ejector rod to move to be tightly attached to the end face of the bearing, the flange is pressed, the wedge block cylinder is withdrawn after the pressing is finished, the ejector rod is driven to be withdrawn and separated from the end face of the bearing, the water pump assembly is taken down, and the pressing is finished; however, the jacking method is easy to cause the sliding of the water pump bearing shaft when the flange or other parts are pressed and mounted, so that the bearing rolling bodies are stressed to influence the service life of the bearing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device is held tightly to water pump bearing axle ejector pin aims at improving the water pump bearing and pushes up tight device and make the gliding problem of bearing axle easily when other parts of pressure equipment

The utility model discloses a realize like this:

a water pump bearing shaft ejector rod enclasping device comprises a hydraulic chuck, an enclasping mechanism, an ejector rod pump body fixing device and a base, wherein the enclasping mechanism is installed on the base; the water pump is fixed on the base through the pump body fixing device, then the water pump bearing shaft ejector rod is tightly ejected by the operation of the tightly ejecting mechanism, the hydraulic chuck is started again, and the water pump bearing shaft ejector rod is tightly held by the hydraulic chuck, so that the problem that the ejector rod is easy to slide when the water pump bearing shaft is used for press mounting other parts is solved.

Furthermore, a positioning pin is arranged on the fixture body, the fixture body is arranged on the base through four screw rods, the bottom ends of the screw rods are fixed on the base, and the upper ends of the screw rods are locked with the fixture body through two nuts on the upper surface and the lower surface of the fixture body; can fix a position the pump body fast through the locating pin, thereby accommodate the water pump bearing of multiple length can be changed to the mounting height that the anchor clamps are specific to accommodate the accommodate lead screw.

Furthermore, the jacking mechanism is a hydraulic oil cylinder and an ejector rod, one end of the ejector rod is in contact with the lower section of the water pump bearing, the other end of the ejector rod is in contact with the upper end face of a push rod of the hydraulic oil cylinder, and the jacking mechanism and the hydraulic chuck are connected to the same hydraulic control system; the control is more convenient and quicker through the same hydraulic system.

Furthermore, a trapezoidal groove is formed in the lower end of the ejector rod, and a trapezoidal boss is arranged at a position corresponding to the upper end of the push rod of the hydraulic oil cylinder; the quick centering function is achieved, and the mandril is stressed uniformly.

Furthermore, the clamping end of the quick clamp is a rubber block; the surface of the pump body can be prevented from being damaged by the rapid clamp.

Further, the hydraulic chuck is a three-jaw chuck; the three-jaw chuck can realize automatic centering, has a large clamping range and high clamping speed, and the clamping force can be adjusted to prevent the water pump bearing shaft from being damaged due to the overlarge clamping force.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses hydraulic chuck can realize quick centering, and clamping device presss from both sides tight pump body convenient and fast, presss from both sides tightly effectually, has prevented effectively that the water pump bearing is at the gliding problem of pressure equipment in-process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a perspective view of a water pump bearing shaft and ejector rod clasping device according to a first embodiment of the present invention;

FIG. 2 is a front view of the water pump bearing ejector pin clasping device shown in FIG. 1;

FIG. 3 is a cross-sectional view of the water pump bearing ejector pin clasping device shown in FIG. 2;

in the figure: 1. a hydraulic chuck; 21. a hydraulic cylinder; 22. a top rod; 221. a trapezoidal groove; 23. a push rod; 231. a trapezoidal boss; 31. quick calipers; 311. a rubber block; 32. a clamp body; 321. positioning pins; 4. a screw rod; 5. a base; 6. a pump body; 7. a water pump bearing.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): referring to fig. 1, 2 and 3, a water pump bearing shaft and ejector rod clasping device comprises a hydraulic chuck 1, a puller mechanism, a pump body fixing device and a base 5, wherein the puller mechanism is installed on the base 5, the puller mechanism comprises a hydraulic oil cylinder 21 and an ejector rod 22, the pump body fixing device comprises a quick clamp 31 and a clamp body 32, the installation base of the quick clamp 31 is installed on the clamp body 32 through a bolt, a rubber block 311 is installed at the clamping end of the quick clamp 31, when the rapid clamp 31 clamps the pump body 6, the rubber block 311 tightly presses the pump body to prevent the pump body 6 from being scratched by the rapid clamp 31 in the press-fitting process, the clamp body 32 is provided with a positioning pin 321 corresponding to the mounting hole of the pump body 6, when the pump body 6 is fixed, the position of the pump body 6 can be quickly determined by matching the positioning pin 321 on the clamp body 32 with the mounting hole of the pump body 6, so that the deviation between the axis of the pump body 6 and the central axis of the ejector rod 22 is prevented from being too large; the clamp body 32 is provided with a plurality of mounting holes for adjusting the mounting position of the quick clamp 31, the clamp body 32 is mounted on the base 5 through 4 lead screws 4, the lower end of each lead screw 4 is fixed on the clamp body 32, the upper end of each lead screw is locked with the clamp body 32 through a nut, the mounting height of the clamp body 32 can be changed by adjusting the locking nut of each lead screw 4, so that the water pump bearing 7 is in a proper position and can support the press mounting of the water pump bearings 7 with various lengths in the mounting range, a through hole through which the ejector rod 22 passes is formed in the middle of the clamp body 32, the ejector rod 22 is in clearance fit with the through hole of the clamp body 32, the upper end of the ejector rod 22 is in contact with the lower end face of the shaft of the water pump bearing 7, the lower end of the ejector rod is in contact with the upper end face of the push rod 23, the lower end face of the ejector rod 22 is provided with a trapezoidal groove 221, the corresponding push rod, at this time, the end surface of the push rod 23 is completely contacted with the end surface of the push rod 22, so that the push rod 22 and the push rod 23 are quickly centered, and the stress of the push rod 22 is uniform; the hydraulic oil cylinder 21 is arranged on the base 5 through a flange plate, a push rod 23 of the hydraulic oil cylinder 21 is contacted with the lower end surface of the ejector rod 22 through a through hole in the middle of the base 5, and the hydraulic chuck 1 is fixedly arranged on the bottom surface of the clamp body 32 through a bolt; the jacking mechanism and the hydraulic chuck 1 are connected to the same hydraulic control system through pipelines, the hydraulic control system mainly comprises a hydraulic pump, a motor, a control panel and other components capable of realizing the work and control of the whole hydraulic system, and the hydraulic chuck 1 and the jacking mechanism can be controlled by controlling one hydraulic control system, so that the press-fitting operation process of the water pump bearing 7 is simpler and the cost is saved; the hydraulic chuck 1 is a three-jaw chuck and can realize the adjustment of the clamping force by adjusting a pressure adjusting valve on the hydraulic chuck 1, so that the bearing connecting shaft is prevented from sliding in the press mounting process due to over-loose clamping force or the surface of the bearing connecting shaft is prevented from being damaged by extrusion due to too large clamping force.

The working principle is as follows: fixing a pump body 6 on a clamp body through a quick clamp 31, enabling an installation surface of the pump body 6 to be horizontal to the upper surface of a base 5 through an adjusting screw rod 4, starting a hydraulic oil cylinder 21, pushing an upper end surface of a push rod 22 to be flatly attached to a lower end surface of a water pump bearing shaft through a push rod 23, then starting a hydraulic chuck 1, enabling the push rod 21 to be clamped by the hydraulic chuck 1 to enable the bearing shaft not to move up and down and horizontally, and then carrying out press mounting on other parts of a water pump shaft and 7; the hydraulic chuck 1 always keeps the clamping pressure in the press fitting process; after the press mounting is finished, after the hydraulic chuck 1 and the hydraulic oil cylinder 21 are loosened, the ejector rod 22 falls down, and then the quick calipers 31 are loosened to take out the pump body 6.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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

1. The utility model provides a device is held tightly to water pump bearing axle ejector pin, includes hydraulic chuck (1), top tight mechanism, pump body fixing device and base (5), its characterized in that: the hydraulic pump is characterized in that a jacking mechanism is installed on the base (5), the pump body fixing device comprises a quick clamp (31) and a clamp body (32), a through hole is formed in the middle of the clamp body (32), the jacking mechanism comprises a hydraulic oil cylinder (21) and an ejector rod (22), the hydraulic oil cylinder (21) is installed on the base (5), the ejector rod (22) is in clearance fit with the through hole of the clamp body (32), and the hydraulic chuck (1) is installed on the bottom surface of the clamp body (32).

2. The water pump bearing ejector rod enclasping device according to claim 1, wherein a positioning pin (321) is arranged on the clamp body (32), the diameter of the positioning pin (321) corresponds to the diameter of the mounting hole of the pump body (6), and the clamp body (32) is mounted on the base (5) through 4 lead screws (4).

3. The water pump bearing shaft ejector rod enclasping device according to claim 1, wherein the ejector rod (22) is arranged in a through hole in the middle of the clamp body (32), the lower end face end of the ejector rod is in contact with the upper end face of a push rod (23) of a hydraulic oil cylinder (21), and the enclasping mechanism (2) and the hydraulic chuck (1) are both connected to the same hydraulic control system.

4. The water pump bearing ejector rod enclasping device according to claim 3, wherein a trapezoidal groove (221) is arranged at the lower end of the ejector rod (22), and a trapezoidal boss (231) is arranged at the corresponding position of the upper end of the push rod (23) of the hydraulic oil cylinder (21).

5. The water pump bearing ejector rod enclasping device according to claim 1, wherein the clamping end of the quick clamp (31) is a rubber block (311).

6. The water pump bearing ejector rod enclasping device according to claim 1, characterized in that the hydraulic chuck (1) is a three-jaw chuck.