Impeller disassembling device for cooling water pump of automobile engine

Abstract

The utility model belongs to the technical field of water pump impeller disassembling, and particularly relates to an impeller disassembling device of an automobile engine cooling water pump. The base body fixing mechanism is placed on the pressing machine, the base body fixing mechanism comprises a testing fixture body and a plurality of supports installed at the outer bottom of the testing fixture body, and a limiting groove is formed in the testing fixture body in a penetrating mode. The detection body is detachably placed on the limiting groove of the detection tool body, and the cooling water pump is clamped on the detection body at the limiting groove. When the automobile water pump impeller is disassembled, the outer circle of the impeller is disassembled firstly, and then other parts of the impeller are disassembled, so that the disassembling efficiency and accuracy can be improved, damage to the impeller and the surrounding structure of the impeller is reduced to the maximum extent, and the disassembling efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pump impeller disassembly, and in particular relates to an impeller disassembly device for a cooling water pump of an automobile engine. Background Art

[0002] The automobile water pump is composed of a pump body, an impeller, a water seal, a bearing, a sealing ring and other components. The impeller is the core component, and its performance directly affects the working efficiency of the water pump. The impeller drives the coolant to circulate in the engine cooling system by rotating at high speed to ensure that the engine is at normal operating temperature. However, long-term use will cause the impeller blades to wear or age, which will affect the working efficiency of the water pump. In addition, impurities in the coolant may clog the impeller, causing its performance to deteriorate and need to be cleaned or replaced. Early disassembly of the impeller mainly relied on manual operation, such as using wrenches, screwdrivers and other tools for disassembly. This method is inefficient, unsafe, and easily causes damage to the water pump and impeller. With the development of the automobile industry, the requirements for the efficiency and safety of water pump maintenance are constantly increasing, and it is necessary to develop more efficient and safe disassembly devices and technologies. Therefore, is it possible to provide an auxiliary device that can efficiently disassemble the impeller on the automobile water pump.

[0003] For example, the utility model with announcement number CN214868530U discloses a special tool for facilitating disassembling a water pump impeller, comprising a base frame, a main frame and an ejection mechanism, the base frame comprising a support frame and a card plate, the card plate is symmetrically arranged on the head of the support frame, and the card plate and the support frame are integrally formed, the main frame is mounted on the card plate, and the main frame is fixedly connected to the card plate, the ejection mechanism is mounted on the middle part of the main frame, and the ejection mechanism is fixedly connected to the main frame, ensuring that the user can stably place it on the ground through the support frame when using it, so that when the impeller of the water pump needs to be disassembled, the clamping plate is first taken out from the inside of the clamping groove, and then the shaft of the water pump is clamped in the inside of the matching hole to ensure that the impeller can be placed on the upper end surface of the base plate, so that the clamping plate can be installed in the inside of the clamping groove, so that the user can control the jack to drive the anti-wear head to push the water pump shaft. However, this device is a one-time disassembly of the impeller of the water pump, which may increase the additional repair costs caused by misoperation, such as damage to components or coolant leakage caused by improper operation, which requires additional repair costs. Utility Model Content

[0004] The utility model aims to provide a device for disassembling an impeller of a cooling water pump of an automobile engine, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model proposes the following technical scheme: an impeller disassembly device for an automobile engine cooling water pump, comprising a base fixing mechanism and a detection body placed on a press: the base fixing mechanism is placed on the press, the base fixing mechanism comprises a detection body and a plurality of brackets installed on the outer bottom of the detection body, a limiting groove is penetrated through the detection body, the detection body is detachably placed on the limiting groove of the detection body, and the cooling water pump is clamped on the detection body at the limiting groove.

[0006] Preferably, the limiting groove consists of a first cylindrical groove and a second cylindrical groove opened axially, the first cylindrical groove is opened on the upper surface of the inspection body, the second cylindrical groove is opened below the first cylindrical groove, and the opening size of the second cylindrical groove is smaller than the opening size of the first cylindrical groove.

[0007] Preferably, the inspection body is a plate-like structure, a plurality of first screw holes are opened on the inspection body, a plurality of second screw holes are opened at the top of each of the brackets, and a plurality of screws are used to pass through the first screw holes and the second screw holes respectively to connect the plurality of brackets to the outer bottom of the inspection body.

[0008] Preferably, the detection body includes a first detection body, the first detection body is an annular structure, the first detection body is placed on the first cylindrical groove, the cooling water pump is clamped on the first detection body, and the outer circle of the impeller of the cooling water pump contacts the upper surface of the first detection body.

[0009] Preferably, the detection body includes a second detection body, and the second detection body is composed of two semicircular plates arranged in a centrally symmetrical manner; the two semicircular plates each include a first semicircular plate and a second semicircular plate stacked in sequence from top to bottom, and the circular hole formed by the two first semicircular plates is smaller than the size of the circular hole formed by the two second semicircular plates; the cooling water pump is clamped on the second detection body, and the impeller of the cooling water pump is in contact with the second detection body.

[0010] The beneficial effects of the utility model are:

[0011] When disassembling the impeller of an automobile water pump, the outer circle of the impeller is disassembled first, and then the other parts of the impeller are disassembled. The main purpose is to improve the efficiency and accuracy of disassembly and minimize the damage to the impeller and its surrounding structures including the water seal. Direct disassembly of the impeller will cause damage to the surrounding structures due to improper operation. At the same time, the impeller is closely connected to the pump shaft, and direct disassembly may damage the bearing and water seal. Disassembling the outer circle of the impeller first can provide a larger operating space for the subsequent operation and reduce potential damage to other structures.

[0012] After removing the outer circle of the impeller, it is easier to inspect and evaluate the internal structure and condition of the impeller. For example, the impeller blades can be checked for cracks, wear or other forms of damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of step 1 of the utility model (without the cooling water pump installed).

[0014] Figure 2 It is a three-dimensional schematic diagram of step 1 of the utility model (installing the cooling water pump).

[0015] Figure 3 It is a cross-sectional schematic diagram of step 1 of the utility model (installing the cooling water pump).

[0016] Figure 4 It is a cross-sectional schematic diagram of step 1 of the utility model (the cooling water pump and the first detection body are not installed).

[0017] Figure 5 It is a schematic diagram of a cooling water pump of the present utility model.

[0018] Figure 6 It is a three-dimensional schematic diagram of step 2 of the utility model (without the cooling water pump installed).

[0019] Figure 7 It is a three-dimensional schematic diagram of step two of the utility model (installing the cooling water pump).

[0020] Figure 8 It is a cross-sectional schematic diagram of step two of the present invention (installing the cooling water pump).

[0021] Fig. 9 It is a cross-sectional schematic diagram of step 2 of the utility model (without the cooling water pump installed).

[0022] Fig.10 It is a three-dimensional schematic diagram of the reverse side of the second detection body of the utility model.

[0023] The attached drawings indicate: 1: cooling water pump, 2: impeller, 3: detection body, 4: bracket, 5: first screw hole, 6: second screw hole, 7: screw, 8: limiting groove, 81: first cylindrical groove, 82: second cylindrical groove, 9: first detection body, 10: second detection body, 11: semicircular plate, 12: first semi-annular plate, 13: second semi-annular plate, 14: water seal. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances.

[0026] It should be noted that in the present application, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0027] The utility model provides Figure 1-10 The impeller disassembling device of the automobile engine cooling water pump shown in the figure comprises a base fixing mechanism and a detection body placed on a press machine, wherein the press machine can be a press machine.

[0028] The base fixing mechanism is placed on the press machine, so that the press machine can disassemble the impeller 2 placed on the base fixing mechanism from the cooling water pump 1.

[0029] The base fixing mechanism includes a test body 3 and two brackets 4 installed on the outer bottom of the test body 3. The test body 3 is a plate-like structure, and six first screw holes 5 are opened on the test body 3, and three second screw holes 6 are opened at the top of each bracket 4. Six hexagon socket head screws 7 M8x25 are used to pass through the first screw holes 5 and the second screw holes 6 to connect the two brackets 4 to the outer bottom of the test body 3. Among them, the bracket 4 plays a supporting role, and the space formed by the bottom of the test body 3 and the bracket 4 can ensure that the remaining structure after the impeller 2 is disassembled falls off into the space.

[0030] The detection body 3 is provided with a limiting groove 8. The limiting groove 8 is composed of a first cylindrical groove 81 and a second cylindrical groove 82 which are axially provided. The first cylindrical groove 81 is provided on the upper surface of the detection body 3, and the second cylindrical groove 82 is provided below the first cylindrical groove 81. The opening size of the second cylindrical groove 82 is smaller than the opening size of the first cylindrical groove 81.

[0031] The detection body is detachably placed on the limiting groove 8 of the detection body 3, and the cooling water pump 1 is clamped on the detection body at the limiting groove 8. The detection body includes a first detection body 9 and a second detection body 10. The first detection body 9 and the second detection body 10 are detachably placed at the first cylindrical groove 81 of the limiting groove 8.

[0032] The detection body includes a first detection body 9, which is an annular structure. The first detection body 9 is placed on the first cylindrical groove 81, and the cooling water pump 1 is clamped and placed on the first detection body 9, and the outer circumference of the impeller 2 of the cooling water pump 1 is in contact with the first detection body 9.

[0033] The detection body also includes a second detection body 3. The second detection body 10 is composed of two semicircular plates 11 arranged in a central symmetric manner. The two semicircular plates 11 each include a first semicircular plate 12 and a second semicircular plate 13 stacked in sequence from top to bottom, the circular hole formed by the two first semicircular plates 12 is smaller than the circular hole formed by the two second semicircular plates 13, and the outer circle size of the first semicircular plate 12 and the second semicircular plate 13 is the same. The cooling water pump 1 is clamped at the second detection body 10, and the impeller 2 of the cooling water pump 1 is in contact with the second detection body 10.

[0034] The steps of using the utility model are as follows:

[0035] The first step is to place the disassembly device on the pressing platform of the press machine, place the first detection body 9 on the first cylindrical groove 81 of the limiting groove 8 of the detection body 3, and place the cooling water pump 1 on the first detection body 9 from above. At this time, the outer circle of the impeller 2 of the cooling water pump 1 is in contact with the first detection body 9. Turn on the press machine, and the press machine presses downward. The inner hole of the first detection body 9 is in contact with the end face of the impeller 2, and the impeller 2 is subjected to the downward pressure of the press. The first detection body 9 also has an upward supporting force on the end face of the impeller 2 that is equal to the pressure. The contact part between the end face of the impeller 2 and the end face of the first detection body 9 has a zero resultant force in the axial direction. The impeller 2 is located inside the hole of the first detection body 9 and is subjected to axial compression force. The impeller 2 is cut downward from the hole of the first detection body 9 to perform blanking. The first detection body 9 is equivalent to the cutting plate when the outer circle of the impeller 2 is removed. The press machine presses downward until the product impeller 2 is pressed downward along the inner hole of the detection body and the outer circle of the impeller 2 is cut off, that is, the outer circle of the impeller 2 is removed first, and then the first detection body 9 is taken off.

[0036] In the second step, pick up the cooling water pump 1 after being blanked in the first step, and clamp the two semicircular plates 11 of the second detection body 10 to the lower side of the remaining impeller 2 structure of the water pump from the left and right sides respectively. At this time, the end face of the impeller 2 is completely in contact with the second detection body 10; place the second detection body 10 clamping the water pump on the first cylindrical groove 81 of the limiting groove 8 of the detection body 3, start the press, and press downward. Under the downward pressure of the press, the bearing of the water pump is separated from the impeller 2 bushing until it is completely separated from the impeller 2 bushing, and the bearing water seal assembly is blanked to the lower part of the base, and the impeller 2 is clamped on the upper part of the second detection body 10, and the impeller 2 is removed.

[0037] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A disassembly device for the impeller of an automobile engine cooling water pump, characterized in that: It includes a base fixing mechanism and a detection body placed on a press machine: the base fixing mechanism is placed on the press machine, the base fixing mechanism includes a detection body and a plurality of brackets installed on the outer bottom of the detection body, a limiting groove is penetrated through the detection body, the detection body is detachably placed on the limiting groove of the detection body, and the cooling water pump is clamped on the detection body at the limiting groove.

2. The impeller disassembling device for an automobile engine cooling water pump according to claim 1, characterized in that: The limiting groove consists of a first cylindrical groove and a second cylindrical groove opened axially, the first cylindrical groove is opened on the upper surface of the inspection body, the second cylindrical groove is opened below the first cylindrical groove, and the opening size of the second cylindrical groove is smaller than the opening size of the first cylindrical groove.

3. The impeller disassembling device of an automobile engine cooling water pump according to claim 2, characterized in that: The inspection body is a plate-like structure, with multiple first screw holes opened on it, multiple second screw holes opened at the top of each bracket, and multiple screws are used to pass through the first screw holes and the second screw holes to connect the multiple brackets to the outer bottom of the inspection body.

4. The impeller disassembling device for an automobile engine cooling water pump according to claim 3, characterized in that: The detection body includes a first detection body, which is an annular structure and is placed on the first cylindrical groove. The cooling water pump is clamped on the first detection body, and the outer circle of the impeller of the cooling water pump contacts the upper surface of the first detection body.

5. The impeller disassembling device for an automobile engine cooling water pump according to claim 3, characterized in that: The detection body includes a second detection body, and the second detection body is composed of two semicircular plates arranged in a central symmetrical manner; the two semicircular plates each include a first semicircular plate and a second semicircular plate stacked in sequence from top to bottom, and the circular hole formed by the two first semicircular plates is smaller than the circular hole formed by the two second semicircular plates; the cooling water pump is clamped on the second detection body, and the impeller of the cooling water pump is in contact with the second detection body.

Images