Automobile urea pump motor multi-bearing press fitting tool

Abstract

The utility model relates to the technical field of automobile urea pump motor production, in particular to a multi-bearing press fitting tool for an automobile urea pump motor. The device mainly comprises a sliding rail mounting base, a linear sliding rail, a positioning core column, a sliding block, a ball spline mounting base, a ball spline, a second bearing clamping block, a lantern ring, a pressing plate, a first bearing pressing head and a third bearing pressing head, and all the parts cooperate with one another. Then a linear guide rail pair is used for driving a ball spline with a first bearing pressing head to move inwards, the first bearing pressing head is used for smoothly installing a first bearing to a supporting bracket, then the linear guide rail pair is used for driving the other ball spline to move inwards, and two second bearing clamping blocks are used for clamping a second bearing in a second bearing installation area; and finally, the third bearing pressing head is used for smoothly installing the third bearing to the supporting bracket, and at the moment, the three bearings are concentric, so that follow-up main shaft installation operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile urea pump motor production, in particular to a multi-bearing press-fitting tool for automobile urea pump motor. Background Art

[0002] The automobile urea pump motor plays a vital role in the automobile exhaust treatment system. First of all, the main function of the automobile urea pump motor is to drive the urea pump to deliver the urea solution to the exhaust treatment device. This operation is particularly critical in the emission control system of modern diesel vehicles, because the urea solution can react chemically with the nitrogen oxides in the exhaust gas, converting them into harmless nitrogen and water vapor, thereby effectively reducing the pollutant emissions in the exhaust gas. Specifically, when the diesel engine is running, the urea pump motor starts to work and drives the urea pump to extract the urea solution. Through a special pipeline system, these solutions are accurately delivered to the injection device of the exhaust treatment device. There, the urea solution is injected into the high-temperature exhaust gas, reacts chemically with the nitrogen oxides, and purifies the exhaust gas. In addition, the automobile urea pump motor also needs to have high stability and reliability. Because the urea pump needs to work continuously for a long time and the working environment is relatively harsh, the motor must be able to withstand these challenges to ensure the stable operation of the urea pump. At the same time, the motor also needs to have low energy consumption and a long service life to reduce the operating cost of the vehicle.

[0003] At present, the support bracket of the automobile urea pump motor is located on the main shaft and needs to be installed with three bearings, but there is a lack of press-fitting tooling that can press the three bearings onto the support bracket at the same time, which affects the assembly efficiency of the automobile urea pump motor. Utility Model Content

[0004] The utility model aims to overcome the above problems existing in the traditional technology and provide a multi-bearing press-fitting tool for an automobile urea pump motor.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] A multi-bearing press-fitting tool for an automobile urea pump motor, comprising a slide rail mounting base, a linear slide rail, a positioning core column, a slider, a ball spline mounting base, a ball spline, a No. 2 bearing clamping block, a collar, a pressure plate, a No. 1 bearing pressure head and a No. 3 bearing pressure head. A linear slide rail is fixed on the upper side of the slide rail mounting base, a positioning core column matched with a supporting bracket is fixed to the middle part of the upper end of the linear slide rail, two sliders each forming a linear guide pair therewith are symmetrically mounted on the linear slide rail, a ball spline mounting base is fixed on the upper side of the slider, a ball spline is mounted on the ball spline mounting base, a No. 2 bearing clamping block is fixed to the outer side of the ball spline sleeve of the ball spline, a collar is sleeved on the outer side of the upper part of the spline shaft of the ball spline, a No. 1 bearing pressure head is fixed to the outer side of one of the collars via a pressure plate, and a No. 3 bearing pressure head is fixed to the outer side of the other collar via a pressure plate.

[0007] Furthermore, in the above-mentioned automotive urea pump motor multi-bearing press-fitting tooling, the support bracket includes a support bracket body, a first bearing seat and a third bearing seat are fixed side by side on one side of the support bracket body, a convex tube is provided at the outer end of the first bearing seat, and the area where the support bracket body is located between the first bearing seat and the third bearing seat serves as a second bearing installation area.

[0008] Furthermore, in the above-mentioned automobile urea pump motor multi-bearing press-fitting tooling, a No. 1 bearing mounting groove for mounting a No. 1 bearing is provided inside the first bearing seat, and the specifications of the No. 1 bearing press head match the specifications of the No. 1 bearing.

[0009] Furthermore, in the above-mentioned automobile urea pump motor multi-bearing press-fitting tooling, the interior of the convex tube is provided with a main shaft through groove for facilitating the main shaft to pass through, and the main shaft through groove is communicated with the No. 1 bearing installation groove.

[0010] Furthermore, in the above-mentioned automobile urea pump motor multi-bearing press-fitting tooling, the upper part of the positioning core column is provided with a positioning groove matching the outer diameter of the convex tube, and the lower part of the positioning core column is provided with a main shaft avoidance groove for avoiding the main shaft.

[0011] Furthermore, in the above-mentioned automobile urea pump motor multi-bearing press-fitting tooling, two No. 2 bearing clamping blocks are symmetrically provided with No. 2 bearing clamping half grooves, and the two No. 2 bearing clamping half grooves are butt-jointed to form a No. 2 bearing clamping groove matching with the No. 2 bearing.

[0012] Furthermore, in the above-mentioned automobile urea pump motor multi-bearing pressing tool, the interior of the third bearing seat is provided with a No. 3 bearing mounting groove for mounting a No. 3 bearing, and the specifications of the No. 3 bearing press head match the specifications of the No. 3 bearing.

[0013] Furthermore, in the above-mentioned automobile urea pump motor multi-bearing pressing tooling, the No. 1 bearing pressure head / No. 3 bearing pressure head can rotate with the manual rotation of the ring, and the No. 1 bearing pressure head / No. 3 bearing pressure head can press down with the manual downward pressure of the pressure plate.

[0014] The beneficial effects of the utility model are:

[0015] The utility model has a reasonable structural design, which is mainly composed of a slide rail mounting base, a linear slide rail, a positioning core column, a sliding block, a ball spline mounting base, a ball spline, a No. 2 bearing clamping block, a sleeve ring, a pressure plate, a No. 1 bearing pressure head and a No. 3 bearing pressure head. All components cooperate with each other. First, the positioning core column is used to position and place a support bracket as a bearing mounting carrier, and then the linear guide pair is used to drive the ball spline with the No. 1 bearing pressure head to move inwardly, and the sleeve ring and the pressure plate are used to drive the No. 1 bearing pressure head to move downward, so that the No. 1 bearing is smoothly installed in the No. 1 bearing mounting groove of the supporting bracket, and then the linear guide pair is used to drive another ball spline to move inwardly, and two No. 2 bearing clamping blocks are used to clamp the No. 2 bearing in the second bearing mounting area between the first bearing seat and the third bearing seat. Finally, the sleeve ring and the pressure plate are used to drive the No. 3 bearing pressure head to move downward, so that the No. 3 bearing is smoothly installed in the No. 3 bearing mounting groove of the supporting bracket. At this time, the three bearings are concentric, which is beneficial to the subsequent installation of the main shaft.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the support bracket in the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the support bracket after the No. 1 bearing is installed in the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the support bracket after the No. 2 bearing is installed in the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the support bracket after the No. 3 bearing is installed in the utility model;

[0023] In the accompanying drawings, the components represented by the reference numerals are described as follows:

[0024] 1-slide rail mounting base, 2-linear slide rail, 3-positioning core column, 4-slider, 5-ball spline mounting base, 6-ball spline, 7-No. 2 bearing clamping block, 8-ring, 9-pressure plate, 10-No. 1 bearing pressure head, 11-No. 3 bearing pressure head, 12-support bracket, 121-support bracket body, 122-first bearing seat, 123-No. 1 bearing mounting groove, 124-convex tube, 125-spindle through groove, 126-third bearing seat, 127-No. 3 bearing mounting groove, 13-No. 1 bearing, 14-No. 2 bearing, 15-No. 3 bearing. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-Figure 5 As shown, this embodiment is a multi-bearing press-fitting tool for an automobile urea pump motor, comprising a slide rail mounting base 1, a linear slide rail 2, a positioning core column 3, a slider 4, a ball spline mounting base 5, a ball spline 6, a No. 2 bearing clamping block 7, a collar 8, a pressure plate 9, a No. 1 bearing press head 10, and a No. 3 bearing press head 11. A linear slide rail 2 is fixed on the upper side of the slide rail mounting base 1, a positioning core column 3 that cooperates with a support bracket 12 is fixed to the middle of the upper end of the linear slide rail 2, and two sliders 4 that each form a linear guide pair with the linear slide rail 2 are symmetrically mounted. A ball spline mounting base 5 is fixed on the upper side of the slider 4, a ball spline 6 is mounted on the ball spline mounting base 5, and a No. 2 bearing clamping block 7 is fixed to the outer side of the ball spline sleeve 6 of the ball spline 6. A sleeve ring 8 is sleeved on the outer side of the upper part of the spline shaft of the ball spline 6, wherein a No. 1 bearing press head 10 is fixed to the outer side of one of the sleeve rings 8 via a pressure plate 9, and a No. 3 bearing press head 11 is fixed to the outer side of the other sleeve ring 8 via a pressure plate 9.

[0027] In this embodiment, the support bracket 12 includes a support bracket body 121, and a first bearing seat 122 and a third bearing seat 126 are fixed side by side on one side of the support bracket body 121. A convex tube 124 is provided at the outer end of the first bearing seat 122. The area where the support bracket body 121 is located between the first bearing seat 122 and the third bearing seat 126 serves as a second bearing installation area.

[0028] In this embodiment, a No. 1 bearing mounting groove 123 for mounting a No. 1 bearing 13 is provided inside the first bearing seat 122 , and the specifications of the No. 1 bearing press head 10 match the specifications of the No. 1 bearing 13 .

[0029] In this embodiment, a main shaft through groove 125 is provided inside the convex tube 124 for the main shaft to pass through, and the main shaft through groove 125 is communicated with the No. 1 bearing installation groove 123 .

[0030] In this embodiment, a positioning groove matching the outer diameter of the convex tube 124 is formed on the upper portion of the positioning core column 3 , and a main shaft avoidance groove for avoiding the main shaft is formed on the lower portion of the positioning core column 3 .

[0031] In this embodiment, two No. 2 bearing clamping blocks 7 are symmetrically provided with No. 2 bearing clamping half grooves, and the two No. 2 bearing clamping half grooves are butt-jointed to form a No. 2 bearing clamping groove matching with the No. 2 bearing 14 .

[0032] In this embodiment, a No. 3 bearing mounting groove 127 for mounting a No. 3 bearing 15 is provided inside the third bearing seat 126 , and the specifications of the No. 3 bearing press head 11 match the specifications of the No. 3 bearing 15 .

[0033] In this embodiment, the No. 1 bearing pressure head 10 / the No. 3 bearing pressure head 11 can rotate along with the manual rotation of the sleeve ring 8 , and the No. 1 bearing pressure head 10 / the No. 3 bearing pressure head 11 can press downward along with the manual downward pressing of the pressure plate 9 .

[0034] A specific application of this embodiment is: this tooling is mainly composed of a slide rail mounting base 1, a linear slide rail 2, a positioning core column 3, a slider 4, a ball spline mounting base 5, a ball spline 6, a No. 2 bearing clamping block 7, a collar 8, a pressure plate 9, a No. 1 bearing pressure head 10 and a No. 3 bearing pressure head 11. The various components cooperate with each other. First, the positioning core column 3 is used to position and place the support bracket 12 as a bearing mounting carrier, and then the linear guide pair is used to drive the ball spline 6 with the No. 1 bearing pressure head 10 to move inward, and the collar 8 and the pressure plate 9 are used to drive the No. 1 bearing pressure head 10 to move downward. Shift, so that the No. 1 bearing 13 is smoothly installed in the No. 1 bearing mounting groove 123 of the supporting bracket 12, and then use the linear guide pair to drive another ball spline 6 to move inward, use two No. 2 bearing clamping blocks 7 to clamp the No. 2 bearing 14 in the second bearing mounting area between the first bearing seat 122 and the third bearing seat 126, finally use the ring 8 and the pressure plate 9 to drive the No. 3 bearing pressure head 11 to move downward, so that the No. 3 bearing 15 is smoothly installed in the No. 3 bearing mounting groove 123 of the supporting bracket 12. At this time, the three bearings are concentric, which is conducive to the subsequent installation of the main shaft.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A multi-bearing press-fitting tool for an automobile urea pump motor, characterized in that: It includes a slide rail mounting base, a linear slide rail, a positioning core column, a slider, a ball spline mounting base, a ball spline, a No. 2 bearing clamping block, a collar, a pressure plate, a No. 1 bearing pressure head and a No. 3 bearing pressure head. A linear slide rail is fixed on the upper side of the slide rail mounting base, a positioning core column matched with a supporting bracket is fixed to the middle part of the upper end of the linear slide rail, two sliders each constituting a linear guide pair therewith are symmetrically mounted on the linear slide rail, a ball spline mounting base is fixed on the upper side of the slider, a ball spline is mounted on the ball spline mounting base, a No. 2 bearing clamping block is fixed to the outer side of the ball spline sleeve of the ball spline, a collar is sleeved on the outer side of the upper part of the spline shaft of the ball spline, a No. 1 bearing pressure head is fixed to the outer side of one of the collars via a pressure plate, and a No. 3 bearing pressure head is fixed to the outer side of the other collar via a pressure plate.

2. The multi-bearing press-fitting tool for the automobile urea pump motor according to claim 1 is characterized in that: The support bracket includes a support bracket body, a first bearing seat and a third bearing seat are fixed side by side on one side of the support bracket body, a convex tube is provided at the outer end of the first bearing seat, and the area where the support bracket body is located between the first bearing seat and the third bearing seat serves as a second bearing installation area.

3. The multi-bearing press-fitting tool for the automobile urea pump motor according to claim 2 is characterized in that: A No. 1 bearing mounting groove for mounting a No. 1 bearing is provided inside the first bearing seat, and the specifications of the No. 1 bearing pressure head match the specifications of the No. 1 bearing.

4. The multi-bearing press-fitting tool for the automobile urea pump motor according to claim 3 is characterized in that: The interior of the convex tube is provided with a main shaft through groove for the main shaft to pass through, and the main shaft through groove is communicated with the No. 1 bearing installation groove.

5. The multi-bearing press-fitting tool for the automobile urea pump motor according to claim 4 is characterized in that: The upper part of the positioning core column is provided with a positioning groove matched with the outer diameter of the convex tube, and the lower part of the positioning core column is provided with a main shaft avoidance groove for avoiding the main shaft.

6. The multi-bearing press-fitting tool for the automobile urea pump motor according to claim 5 is characterized in that: The two No. 2 bearing clamping blocks are symmetrically provided with No. 2 bearing clamping half grooves, and the two No. 2 bearing clamping half grooves are butt-jointed to form a No. 2 bearing clamping groove matched with the No. 2 bearing.

7. The multi-bearing press-fitting tool for the automobile urea pump motor according to claim 6 is characterized in that: A No. 3 bearing mounting groove for mounting a No. 3 bearing is provided inside the third bearing seat, and the specifications of the No. 3 bearing pressure head match the specifications of the No. 3 bearing.

8. The multi-bearing press-fitting tool for the automobile urea pump motor according to claim 7 is characterized in that: The No. 1 bearing pressure head / No. 3 bearing pressure head can rotate along with the manual rotation of the sleeve ring, and the No. 1 bearing pressure head / No. 3 bearing pressure head can press downward along with the manual downward pressing of the pressure plate.

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