CN208020003U - A kind of concrete test block grinding device - Google Patents

Abstract

The utility model discloses a concrete test block grinding device, which comprises a grinding machine body, a telescopic bracket and a base. The grinding body includes a retractable grinding body, a handle, a motor and a grinding disc. The retractable grinding body is composed of inner and outer cylinders, which are connected by bolts. The handle is welded on the motor at an angle of 40 degrees, the motor and the retractable grinding body are connected by iron sheets, the grinding sheet is connected to the main shaft by a screw pressure plate, and connected to the motor by a main shaft. After the power is turned on, the motor drives the grinding disc through the transmission device to perform the grinding operation. The telescopic bracket is composed of an inner cylinder and an outer cylinder, and the inner and outer cylinders are connected by bolts. The telescopic support and the grinding machine body are connected by positioning pins. Base includes circular level, plate and leveling nut. The base and the telescopic support are connected by bearings. During the grinding operation, the concrete test block is placed on a horizontal base, the staff holds the handle, turns on the power supply, and completes the grinding operation relying on the bearing and the retractable grinding body.

Description

A concrete test block grinding device

technical field

The utility model relates to a concrete test block grinding device.

Background technique

In the field of construction engineering test equipment, it is often necessary to make concrete test blocks for testing. The surface of the manufactured concrete test blocks is often uneven, so the concrete test blocks need to be polished. In the process of grinding the concrete test block, the grinding tools in the past are generally hand-held. Such hand-held grinding tools are greatly affected by human factors during the grinding process, and the grinding accuracy is low. Due to the uneven grinding, the concrete test block is prone to stress concentration during the test process, which affects the accuracy of the test results. In addition, such hand-held grinding tools also have high requirements for the technical proficiency of the staff. If the staff is not familiar with the operation of the hand-held grinding machine, it is easy to cause personal injury accidents. Due to the existence of the above situation, a fixed concrete grinding device is urgently needed in the field of construction engineering test equipment to grind standard concrete specimens.

Utility model content

In order to solve the above problems, the utility model proposes a concrete test block grinding device. The device mainly includes a grinding machine body, a telescopic support and a base. Using this device can improve the grinding accuracy of concrete test blocks, thereby improving the accuracy of test results and reducing test errors; at the same time, the device reduces the intensity of manual work, reduces the incidence of personal accidents, and improves the grinding efficiency. flexibility and convenience.

In order to achieve the above object, the utility model adopts the following technical solutions:

A concrete test block grinding device, comprising a base, on the base is provided with a telescopic bracket perpendicular to it, on the telescopic bracket is provided with a grinding body; the grinding body includes a The retractable grinding body vertically of the telescopic support, a motor is installed at the end of the grinding body, a handle inclined at 40 degrees is welded on the top of the motor, and the output shaft end of the motor is provided with After the grinding disc is connected to the power supply, the motor can drive the grinding disc to rotate horizontally through the transmission device, and it is safe and convenient to grind the concrete test block with uneven surface by holding the handle.

Further, the telescopic grinding body is composed of a solid inner cylinder and a hollow outer cylinder, and there are multiple threaded holes in the height direction of the hollow outer cylinder, and bolts can be passed between the hollow outer cylinder and the solid inner cylinder. It can be tightened and fixed through the multiple threaded holes, and can be freely stretched horizontally when unscrewed.

Further, the motor is connected to the retractable grinding body through a connecting piece, one end of the connecting piece is welded on the motor, and the surface of the other end has multiple threaded holes communicating with the surface of the retractable grinding body, through which bolts pass through the threaded holes and Retractable sanding body connection.

Further, the grinding disc is connected to the motor spindle through a screw pressure plate and is detachable; after the power supply is connected, the motor can drive the grinding disc to rotate horizontally through the transmission device, and the concrete test block with uneven surface can be polished by holding the handle. Safe and convenient.

Further, the telescopic bracket is composed of a solid inner cylinder and a hollow outer cylinder. There are three threaded holes on the outer cylinder. The inner and outer cylinders are fixed by bolts passing through the threaded holes, and can be stretched when unscrewed. The retractable bracket and the retractable grinding body are connected and fixed through positioning pins, which provide support for the grinding body, which is safe and labor-saving.

Further, the base is connected with the telescopic support through bearings on the base, so that the telescopic support can drive the grinding body to freely rotate 180 degrees in the horizontal direction.

Further, each of the four corners of the base has a level adjustment nut, and a level is embedded on the surface of the base, and the base is adjusted and calibrated by the level adjustment nut and the level, so that the base is in a horizontal position.

Further, the base is used to place concrete test blocks of different sizes, which is beneficial to reduce grinding errors.

The working principle of the utility model is:

The base and the telescopic support are connected by bearings, which can make the support and the grinding body rotate freely in the horizontal direction. The telescopic support selects the telescopic length of the inner cylinder according to the height of the concrete test block, so that the lower surface of the grinding plate and the concrete test block placed on the base contact with the upper surface. When performing the grinding operation, the staff holds the handle on the grinding body and unscrews the bolts on the retractable grinding body so that it can expand and contract freely, and the grinding plate is driven by the motor to perform the grinding operation.

The beneficial effects of the utility model are:

(1) By setting the base, the level adjustment nut and the circular level, the concrete test block can be ground horizontally, which controls the grinding error and improves the grinding accuracy;

(2) The base and the telescopic bracket are connected by bearings, and the telescopic bracket can drive the grinding body connected by the positioning pin to rotate freely 180 degrees in the horizontal direction, and hold the handle to grind the concrete test block horizontally and flexibly, which is flexible and practical;

(3) The telescopic bracket provides support for the angle grinder, which reduces the hand-holding strength of the staff, which not only saves labor, but also reduces the incidence of personal accidents.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present utility model. Those skilled in the art can also obtain other drawings based on these drawings without any creative work.

Fig. 1 is the structural representation of this test instrument;

Fig. 2 is a schematic structural view of the base in Fig. 1;

Fig. 3 is a schematic structural view of the telescopic support in Fig. 1;

Fig. 4 is a schematic structural view of the grinding body in Fig. 1;

Fig. 5 is a schematic diagram of the telescopic grinding body and the motor connection method in Fig. 1;

Fig. 6 is a schematic diagram of the connection between the motor and the grinding disc in Fig. 1;

The names of the parts indicated by the numbers in the accompanying drawings are as follows: 1-1 base, 1-2 telescopic bracket, 1-3 polished body, 1-4 positioning pin, 1-5 bearing, 2-1 horizontal adjustment nut, 2-2 circular level, 2-3 plate, 3-1 inner cylinder, 3-2 bolt, 3-3 outer cylinder, 3-4 pin hole, 3-5 threaded hole, 4-1 inner cylinder, 4-2 Outer cylinder, 4-3 bolts, 4-4 handles, 4-5 motors, 4-6 grinding discs, 4-7 threaded holes, 5-1 retractable grinding body, 5-2 threaded holes, 5-3 iron sheets , 6-1 spindle, 6-2 screw platen.

Detailed ways

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

As shown in Fig. 1, a kind of concrete test block polishing device comprises base 1-1, telescopic support 1-2, polishing body 1-3; Wherein, described base 1-1 connects telescopic The brackets 1-2 are connected, and the telescopic bracket 1-2 is perpendicular to the base 1-1; the telescopic grinding body 5-1 of the grinding body 1-3 is perpendicular to the telescopic bracket 1-2; wherein : The base 1-1 is fixed, the telescopic bracket 1-2 can freely rotate 180 degrees horizontally, the grinding body 1-3 is connected with the telescopic bracket 1-2 through the positioning pin 1-4, which limits the relative telescopic bracket of the grinding body However, since the telescopic bracket can rotate horizontally, the grinding body can rotate horizontally at the same angle.

As shown in Figure 2, the base 1-1 includes a level adjustment nut 2-1, a circular level 2-2 and a plate 2-3, each of the four corners of the plate has a threaded hole, and the level adjustment nut 2-1 passes through the threaded hole Connected with the flat plate 2-3, the circular vial 2-2 is embedded in the flat plate 2-4, and the level adjustment nut 2-1 is adjusted until the air bubble in the circular vial 2-2 is centered, then the base 1-1 is level. Place the concrete test block horizontally on the base, reducing grinding errors.

As shown in Figure 3, the telescopic bracket 1-2 is made up of a solid inner cylinder 3-1 and a hollow outer cylinder 3-3, and there are three threaded holes on the outer cylinder 3-3, through which the bolt 3-2 can pass through the threaded holes. The inner and outer cylinders are fixed, and the bolts 3-2 are unscrewed to expand and contract freely horizontally. After placing the concrete test block on the base 1-1, unscrew the bolt 3-2, adjust the height of the support so that the lower surface of the grinding plate 4-6 is close to the upper surface of the concrete test block, and then tighten the bolt 3-2 to fix the inner cylinder 3- 1 position. There is a pin hole 3-4 at the top of the inner cylinder 3-1, and the telescopic support 1-2 is connected with the grinding body 1-3 through the pin hole 3-4 by the positioning pin 1-4.

As shown in Fig. 4, Fig. 5 and Fig. 6, the grinding body 1-3 comprises a retractable grinding body 5-1, a handle 4-4, a motor 4-5 and a grinding disc 4-6; the drive shaft of the motor 4-5 The axis of the shaft is parallel to the telescopic support 1-2; the telescopic grinding body 5-1 includes a solid inner cylinder 4-1 and a hollow outer cylinder 4-2, and there are three threaded holes on the outer cylinder 4-2, and the inner and outer cylinders pass through The bolts 4-3 are connected through the threaded holes, the inner and outer cylinders can be fixed by tightening the bolts 4-3, and can be freely stretched when unscrewed. The handle 4-4 is welded on the top of the motor and inclined at 40 degrees. The retractable grinding body 5-1 is connected with the motor 4-5 through the iron sheet 5-3, and one end of the iron sheet 5-3 is welded on the motor 4-5, and the other end and the retractable grinding body are worn through the bolt 4-3. Connect through the threaded hole that the iron sheet 5-3 communicates with the retractable grinding body. The motor 4-5 is connected to the grinding disc 4-6 through the main shaft 6-1, the main shaft 6-1 is connected to the grinding disc 4-6 through the screw pressure plate 6-2, the grinding disc 4-6 is detachable, unscrew the screw pressure plate 6-2 The grinding disc 4-6 can be unloaded, and the screw pressing plate 6-2 can be used by tightening the screw pressing plate 6-2 after loading onto the grinding disc 4-6.

When performing grinding operations, hold the handle 4-4 and unscrew the bolts fixing the inner cylinder 4-1 and the outer cylinder 4-2, so that the inner and outer cylinders can be horizontally and freely stretched, because the bearing 1-5 drives the retractable grinding machine The body 5-1 can also rotate horizontally. According to the rotation of the grinding disc 4-6 driven by the motor 4-5 through the transmission device, the grinding of the concrete test block can be realized.

To sum up, the concrete test block is placed on the base that has been leveled, and the sign of leveling is that the air bubble in the circular level is centered. Unscrew the bolts on the telescopic bracket, adjust the height so that the grinding disc is close to the concrete test block, and then tighten the bolts to fix the height of the telescopic bracket. Unscrew the bolts on the telescopic grinding body, so that it can be extended and extended freely horizontally, and because the base and the telescopic bracket are connected by bearings, they can freely rotate 180 degrees horizontally, hold the handle, turn on the power, the motor starts to work, and drives The grinding disc rotates to grind the concrete test block, and the device is used for grinding the concrete test block, which is flexible and practical and improves the grinding accuracy.

In a word, the above descriptions are only preferred embodiments of the present utility model, and all equal changes and modifications made according to the patent scope of the utility model should fall within the scope of the utility model patent.

Although the specific implementation of the utility model has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the utility model. Those skilled in the art should understand that on the basis of the technical solution of the utility model, those skilled in the art do not need to Various modifications or deformations that can be made with creative efforts are still within the protection scope of the present utility model.

Claims (8)

1. a kind of concrete test block grinding device, which is characterized in that including a pedestal, set on the pedestal there are one with Its vertical telescoping shoring column, set on the telescoping shoring column there are one polish body；The polishing body includes one A scalable polishing fuselage vertical with the described telescoping shoring column, in the end installation of the described polishing fuselage, there are one electricity Machine, there are one the handle for tilting 40 degree, the output shaft end of motor is equipped with to be ground the welding of motor top, after connecting with the mains, Motor drives grinding to be rotated horizontally by transmission device, and hand-held handle beats the concrete test block of surface irregularity Grind operation.

2. a kind of concrete test block grinding device as described in claim 1, which is characterized in that the scalable polishing fuselage It is made of solid inner cylinder and hollow outer barrel, there is many places threaded hole, hollow outer barrel and reality in the short transverse of the hollow outer barrel Between intracardiac cylinder fixation can be tightened across many places threaded hole by bolt.

3. a kind of concrete test block grinding device as described in claim 1, which is characterized in that the motor and scalable polishing Fuselage is connected by connector, and connector one end is welded on motor, and another end surfaces and scalable polishing fuselage surface have phase Logical many places threaded hole is connect across threaded hole with scalable polishing fuselage by bolt.

4. a kind of concrete test block grinding device as described in claim 1, which is characterized in that the grinding and electric machine main shaft It is connected by screw pressing plate, detachably.

5. a kind of concrete test block grinding device as described in claim 1, which is characterized in that the telescoping shoring column is by reality Intracardiac cylinder and hollow outer barrel form, and have many places threaded hole, inside and outside cylinder to be tightened across threaded hole by bolt solid on the outer barrel It is fixed.

6. a kind of concrete test block grinding device as described in claim 1, which is characterized in that the telescoping shoring column with can Flexible polishing fuselage is connected and fixed by positioning pin.

7. a kind of concrete test block grinding device as described in claim 1, which is characterized in that the pedestal, and it is scalable Holder is connected by the bearing on pedestal, can make telescoping shoring column that polishing body horizontal direction be driven to rotate freely 180 degree.

8. a kind of concrete test block grinding device as described in claim 1, which is characterized in that each on four angles of the pedestal There are one Level tune nut, embedded in susceptor surface there are one spirit levels, are adjusted by Level tune nut and spirit level With calibration pedestal, pedestal is made to be horizontal.