Motor shaft surface sand blasting shielding device
By designing a sandblasting masking device for the motor shaft surface, and utilizing a negative pressure air pump and a negative pressure ring system, the problem of the masking material being difficult to reuse multiple times during the sandblasting of the motor shaft surface was solved, achieving efficient masking and multiple-use protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-04-07
AI Technical Summary
In the existing technology, when using a handheld sandblasting gun to treat the motor shaft surface, masking materials such as tape and masking paper are difficult to reuse and do not provide adequate coverage, which can easily cause the abrasive material to enter the motor and cause damage.
A sandblasting masking device for motor shaft surface was designed. It utilizes a negative pressure air pump and a negative pressure ring system, and uses nylon cable ties to fix the windproof cloth to the motor shaft body. Combined with the negative pressure adsorption mesh, it prevents the sprayed material from entering the motor.
It achieves efficient masking of high-speed spraying materials, avoids motor damage, and the device can be used multiple times, improving the masking effect and practicality.
Smart Images
Figure CN224088804U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to motor shaft surface sand blasting technical field, concretely relates to a motor shaft surface sand blasting shielding device. BACKGROUND
[0002] In the long-term use of motor, the exposed shaft surface is easy to accumulate some dirt, oxide and other impurities, through the sand blasting treatment of motor shaft surface cleaning and changing the roughness of the shaft surface, thereby improving the mechanical properties and coating adhesion. Sand blasting treatment uses compressed air as power, and steel sand, copper sand, corundum and other spraying materials are sprayed at high speed to the workpiece surface, through the impact and cutting action, the surface impurities are removed, and the surface roughness is increased. In order to avoid damage to the part of the motor shaft which does not want to be sandblasted during the sand blasting process, effective shielding protection measures must be taken, but when the motor shaft surface is handled by hand-held sand blasting gun, the covering materials such as adhesive tape and covering paper are difficult to use repeatedly and the shielding is not strict, which can easily lead to the problem that the spraying material enters the motor. SUMMARY
[0003] In order to overcome the defects existing in the prior art, the motor shaft surface sand blasting shielding device is provided to solve the problem that the covering materials such as adhesive tape and covering paper are difficult to use repeatedly and the shielding is not strict, which can easily lead to the problem that the spraying material enters the motor.
[0004] In order to achieve the above-mentioned purpose, a motor shaft surface sand blasting shielding device is provided, which comprises: a sand blasting shielding box, a through shaft ring plate is embedded and fixed on the right side end surface of the sand blasting shielding box,
[0005] The inside of the sand blasting shielding box is connected with a support table through an electric push rod, the upper surface of the support table is placed with a motor body, the right side of the motor body is connected with a motor shaft body, the upper surface of the sand blasting shielding box is fixed with a negative pressure air pump, the negative pressure air pump is connected with the side surface of the through shaft ring plate through a negative pressure main pipe and a branch pipe, the first negative pressure cavity and the second negative pressure cavity are arranged in the through shaft ring plate, the right side end of the through shaft ring plate is attached to the motor shaft body through a windproof cloth, the negative pressure ring cover is fixed on the inner side surface of the through shaft ring plate, the outer side end of the negative pressure ring cover is connected with the first negative pressure cavity and the second negative pressure cavity through the fan-shaped cavity, and the inner side surface of the negative pressure ring cover is provided with an adsorption net surface.
[0006] Further, the controller is installed on the upper surface of the sand blasting shielding box, the visual box door is hingedly installed on the front end surface of the sand blasting shielding box, and the handle is fixed on the surface of the visual box door.
[0007] Further, the fixed plates are welded on the front and rear side ends of the support table, the screw rods are installed at intervals between the fixed plates, and the electric push rods are distributed on the left and right sides of the screw rods.
[0008] Further, the screw surface is connected with a limiting baffle through a driving block, the limiting baffle is symmetrically attached to the front and rear sides of the motor body, and the screw front end is connected with an adjusting stud.
[0009] Further, the negative pressure main pipe is connected with branch pipes through pipe joints, and the branch pipes are connected at the intersection of the first negative pressure cavity and the second negative pressure cavity.
[0010] Further, the inside surface of the shaft ring plate is bonded with a rebound sponge block, and the rebound sponge block and the inside surface of the negative pressure ring cover are both penetrated by a motor shaft body.
[0011] Further, the surface of the windproof cloth is fixed by being bound with the motor shaft body through nylon straps, and the first negative pressure cavity and the second negative pressure cavity are staggered and distributed inside the shaft ring plate.
[0012] The motor shaft surface sanding shielding device of the utility model has the advantages that the windproof cloth on the side surface of the shaft ring plate is bound with the penetrated motor shaft body through nylon straps, the bound windproof cloth blocks the motor sanding shaft end and the sand blocking part end, the negative pressure ring cover inside the shaft ring plate generates negative pressure adsorption through the negative pressure air pump, the sprayed material that seeps from the windproof cloth is adsorbed, high-speed sprayed material is conveniently and efficiently shielded and blocked from entering the motor interior, the damage of sanding processing to the motor body is avoided, the shielding effect of the sanding shielding device is enhanced, the sanding shielding box can be used for shielding multiple times, and the practicability of the motor shaft surface sanding shielding device is improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a front view structural schematic diagram of the motor shaft surface sanding shielding device of the utility model embodiment.
[0014] Figure 2 It is a front view sectional structure schematic diagram of the motor shaft surface sanding shielding device of the utility model embodiment.
[0015] Figure 3 It is a front view local sectional connection structure schematic diagram of the shaft ring plate of the utility model embodiment.
[0016] Figure 4 It is a side view sectional structure schematic diagram of the shaft ring plate of the utility model embodiment.
[0017] Figure 5 It is a three-dimensional structure schematic diagram of the negative pressure ring cover of the utility model embodiment.
[0018] In the figure: 1, sand blasting shielding box; 11, controller; 12, visible box door; 13, handle; 2, support table; 21, fixed plate; 22, adjusting stud; 23, limiting baffle; 24, electric push rod; 25, screw rod; 26, driving block; 3, negative pressure air pump; 31, negative pressure main pipe; 32, pipe joint; 33, branch pipe; 4, motor main body; 41, motor shaft body; 5, through shaft ring plate; 51, first negative pressure cavity; 52, rebound sponge block; 53, second negative pressure cavity; 54, windproof cloth; 55, nylon cable tie; 6, negative pressure ring cover; 61, fan-shaped cavity; 62, adsorption net surface. DETAILED DESCRIPTION
[0019] Referring to Figures 1 to 5 The utility model provides a motor shaft surface sand blasting shielding device, include: sand blasting shielding box 1, sand blasting shielding box 1 right side end surface inserts fixedly with through shaft ring plate 5,
[0020] The sand blasting shielding box 1 is connected with the support table 2 through the electric push rod 24, the motor main body 4 is placed on the upper surface of the support table 2, the motor main body 4 is connected with the motor shaft body 41 on the right side, the sand blasting shielding box 1 is fixed with the negative pressure air pump 3 on the upper surface, the negative pressure air pump 3 is connected with the through shaft ring plate 5 side through the negative pressure main pipe 31 and branch pipe 33, the first negative pressure cavity 51 and the second negative pressure cavity 53 are set up in the through shaft ring plate 5, the through shaft ring plate 5 right side end is pasted with the motor shaft body 41 through the windproof cloth 54, the negative pressure ring cover 6 is fixed on the inner side ring surface of the through shaft ring plate 5, the negative pressure ring cover 6 outer side end is connected with the first negative pressure cavity 51 and the second negative pressure cavity 53 through the fan-shaped cavity 61, the adsorption net surface 62 is set up on the inner side surface of the negative pressure ring cover 6.
[0021] First, the motor main body 4 is placed into the support table 2 in the sand blasting shielding box 1, the support table 2 is pushed up through the electric push rod 24, the motor shaft body 41 of the motor main body 4 is at the side end of the through shaft ring plate 5, then the screw rod 25 is rotated, the limiting baffle 23 moves the motor main body 4 to the middle part, then the motor main body 4 is pushed, the motor shaft body 41 of the motor main body 4 is penetrated into the through shaft ring plate 5, then the visible box door 12 is closed, after the windproof cloth 54 and the motor shaft body 41 are fixed by using the nylon cable tie 55, the negative pressure air pump 3 is started, the adsorption net surface 62 of the negative pressure ring cover 6 generates the negative pressure, the surface of the motor shaft body 41 that is penetrated can be sand blasted, during the sand blasting process, when a small amount of sand blasting material penetrates, the adsorption net surface 62 under the negative pressure is adsorbed on the net surface, the sand blasting material is prevented from moving to the motor end, the high-speed sand blasting material is conveniently shielded and blocked to enter the motor, the damage of the sand blasting process to the motor body is avoided, the protection effect of the sand blasting shielding device is enhanced, the sand blasting shielding box can be used for shielding multiple times, and the practicability of the motor shaft surface sand blasting shielding device is improved.
[0022] In the embodiment, the controller 11 is mounted on the upper surface of the sand blasting shielding box 1, and the visible box door 12 is hingedly mounted on the front end surface of the sand blasting shielding box 1. The handle 13 is fixed to the surface of the visible box door 12.
[0023] As a preferred embodiment, the controller 11 is used to control the operation of the electric push rod 24 and the negative pressure air pump 3. The visible box door 12 facilitates manual adjustment of the position of the motor body 4, so that the motor shaft body 41 of the motor body 4 can penetrate into the shaft ring plate 5. The sand blasting shielding box 1 is convenient for shielding the splashed sand during sand blasting.
[0024] In the embodiment, the fixed plate 21 is welded on the front and rear sides of the support table 2, and the screw rod 25 is mounted between the fixed plates 21 at intervals. The electric push rod 24 is distributed on the left and right sides of the screw rod 25. The driving block 26 is connected to the limiting baffle 23 on the surface of the screw rod 25. The limiting baffles 23 are symmetrically attached to the front and rear sides of the motor body 4. The adjusting stud 22 is connected to the front end of the screw rod 25.
[0025] As a preferred embodiment, the adjusting stud 22 is used to drive the screw rod 25 to rotate forward and backward, so that the driving block 26 converts the rotary motion of the screw rod 25 into linear motion, thereby driving the two sets of limiting baffles 23 to move synchronously and reversely. This facilitates the movement of the motor body 4 on the support table 2 to the middle position, and facilitates the alignment of the motor shaft body 41 of the motor body 4 with the inside ring of the shaft ring plate 5.
[0026] In the embodiment, the negative pressure main pipe 31 is connected to the branch pipe 33 through the pipe joint 32. The branch pipe 33 is connected to the intersection end of the first negative pressure cavity 51 and the second negative pressure cavity 53.
[0027] As a preferred embodiment, the negative pressure air pump 3 generates negative pressure in the first negative pressure cavity 51 and the second negative pressure cavity 53 through the negative pressure main pipe 31 and the branch pipe 33. The mesh surface of the negative pressure ring cover 6 in communication with the first negative pressure cavity 51 and the second negative pressure cavity 53 is in a negative pressure adsorption state, which facilitates the adsorption of the sand penetrating from the windproof cloth 54, and facilitates the efficient shielding and blocking of high-speed sand entering the motor. This avoids direct damage to the motor body during sand blasting processing and enhances the protection effect of the sand blasting shielding device.
[0028] In the embodiment, the rebound sponge block 52 is attached to the inside surface of the shaft ring plate 5. The motor shaft body 41 penetrates through the rebound sponge block 52 and the negative pressure ring cover 6.
[0029] As a preferred embodiment, the rebound sponge block 52 is located at the left end of the negative pressure ring cover 6, which facilitates the attachment of the inside end of the shaft ring plate 5 to the motor shaft body 41, and makes the adsorption effect of the mesh surface of the negative pressure ring cover 6 better.
[0030] In the embodiment, the windproof cloth 54 is fixed on the motor shaft body 41 by the nylon cable tie 55, and the first negative pressure channel 51 and the second negative pressure channel 53 are staggered and distributed inside the penetrating shaft ring plate 5.
[0031] As a preferred embodiment, the nylon cable tie 55 is a disposable cable tie, which is convenient for wrapping and fixing the windproof cloth 54 on the surface of the motor shaft body 41, prevents the shot from directly entering the shot shielding box 1 during the sandblasting process of the motor shaft body 41, and enables the shot shielding box 1 to be used for shielding multiple times, thereby improving the practicability of the motor shaft surface sandblasting shielding device.
[0032] The motor shaft surface sandblasting shielding device can effectively solve the problem that the shielding materials such as adhesive tape and shielding paper are difficult to be used multiple times and are not tightly shielded, which can cause the shot to enter the motor, when the motor shaft surface is processed by a handheld shot gun, and can shield and block the high-speed shot from entering the motor, avoid the damage of the motor body caused by the shot processing, and enhance the protection effect of the shot shielding device. Meanwhile, the shot shielding box can be used for shielding multiple times, thereby improving the practicability of the motor shaft surface sandblasting shielding device, and being suitable for the motor shaft surface sandblasting shielding device.
Claims
1. A sandblasting and masking device for the surface of a motor shaft, comprising: A sandblasting shielding box (1), wherein a through-shaft ring plate (5) is embedded and fixed on the right end face of the sandblasting shielding box (1), characterized in that: The sandblasting shielding box (1) is connected to a support platform (2) via an electric push rod (24) on its inner side. A motor body (4) is placed on the upper surface of the support platform (2). A motor shaft (41) is connected to the right side of the motor body (4). A negative pressure air pump (3) is fixed on the upper surface of the sandblasting shielding box (1). The negative pressure air pump (3) is connected to the side of the through-shaft ring plate (5) via a negative pressure main pipe (31) and a branch pipe (33). The inside of the through-shaft ring plate (5) The device has a first negative pressure chamber (51) and a second negative pressure chamber (53). The right end of the through-shaft ring plate (5) is attached to the motor shaft (41) through a windproof cloth (54). A negative pressure ring cover (6) is fixed on the inner ring surface of the through-shaft ring plate (5). The outer end of the negative pressure ring cover (6) is connected to the first negative pressure chamber (51) and the second negative pressure chamber (53) through a fan-shaped cavity (61). An adsorption mesh surface (62) is provided on the inner side of the negative pressure ring cover (6).
2. The sandblasting and masking device for the surface of a motor shaft according to claim 1, characterized in that, A controller (11) is installed on the upper surface of the sandblasting masking box (1), and a visible door (12) is hinged to the front end of the sandblasting masking box (1). A handle (13) is fixed to the surface of the visible door (12).
3. The sandblasting and masking device for the surface of a motor shaft according to claim 1, characterized in that, The support platform (2) has a fixing plate (21) welded to its front and rear ends, and screws (25) are installed between the fixing plates (21); and electric push rods (24) are distributed on the left and right sides of the screws (25).
4. The sandblasting and masking device for the surface of a motor shaft according to claim 3, characterized in that, The screw (25) surface is connected to a limit baffle (23) via a drive block (26). The limit baffle (23) is symmetrically attached to the front and rear sides of the motor body (4). An adjustment pin (22) is connected to the front end of the screw (25).
5. The sandblasting and masking device for the surface of a motor shaft according to claim 1, characterized in that, The main negative pressure pipe (31) is connected to the branch pipe (33) through the pipe joint (32), and the branch pipe (33) is connected to the junction of the first negative pressure cavity (51) and the second negative pressure cavity (53).
6. The sandblasting and masking device for the surface of a motor shaft according to claim 1, characterized in that, A resilient sponge block (52) is bonded to the inner side of the through-shaft ring plate (5), and the motor shaft (41) passes through both the resilient sponge block (52) and the inner side of the negative pressure ring cover (6).
7. The sandblasting and masking device for the surface of a motor shaft according to claim 1, characterized in that, The surface of the windproof cloth (54) is tied and fixed to the motor shaft (41) by nylon cable ties (55), and the first negative pressure cavity (51) and the second negative pressure cavity (53) are staggered inside the shaft ring plate (5).