CN212872072U

CN212872072U - Cement mortar fluidity tester

Info

Publication number: CN212872072U
Application number: CN202021565780.1U
Authority: CN
Inventors: 邢华元; 邢华平
Original assignee: Chongqing Haoding Concrete Co ltd
Current assignee: Chongqing Haoding Concrete Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-04-02
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a cement mortar fluidity apparatus, include the frame and install last disc in the frame, lower disc, motor, push rod, cam and lift base, the upper end of push rod with go up the disc and connect, the center and the cam butt that the frame was passed to the lower extreme, the other end of cam and the output shaft of motor, the motor can pass through the cam with the push rod drives go up the disc and beat from top to bottom, the up end of going up the disc is equipped with the die sleeve that is used for stereotyped cement mortar, the bottom of frame with the disc is connected down, the lower extreme of disc still is equipped with down the lift base. The cement mortar fluidity tester provided by the utility model has the advantages that the lifting base is arranged at the bottom of the cement mortar fluidity tester, the lifting base can be adjusted according to the heights of different operators, the structure is simple, the production cost is low, and the application range is wide; and in the adjusting process, the two sides of the lifting frame synchronously displace, so that the overall stability in the test process can be effectively guaranteed.

Description

Cement mortar fluidity tester

Technical Field

The utility model relates to a cement manufacture equipment technical field, especially a cement mortar fluidity apparatus.

Background

The cement mortar fluidity tester is also called as a cement fluidity electric jump table, is used for fluidity tests of a new standard GB/T2419-2005 'cement mortar fluidity testing method' released in 2005, is a uniquely specified instrument of the standard, and has the working preparation process as follows: the mixed mortar is quickly loaded into a test mould in two layers, the first layer is loaded to 2/3 th of the truncated cone round mould, a knife is used for respectively cutting 5 times in two mutually vertical directions, a tamping rod is used for uniformly tamping 15 times from edge to center, then the second layer of mortar is loaded, the mortar is loaded to about 20mm higher than the truncated cone round mould, a knife is used for respectively cutting 5 times in two mutually vertical directions, the tamping rod is used for uniformly tamping 10 times from edge to center, after tamping, the mortar is slightly higher than the truncated cone round mould, the tamping depth is deep, the first layer is tamped to 1/2 th of the height of the mortar, the second layer of tamping does not exceed the surface of the tamped bottom layer, after tamping, a mould sleeve is taken down, the knife is inclined, the mortar higher than the truncated cone round mould is removed from the middle to the edge in an approximately horizontal angle twice, and the mortar falling on a table top is wiped off. The truncated cone circular mold is slightly lifted vertically upwards to be removed. Immediately pressing a starting button of the counter to complete 25 jumps in one cycle; and after the jumping is finished, measuring the expanding diameters of the two mutually perpendicular directions of the bottom surface of the mortar by using a vernier caliper with a measuring range of 300mm, calculating an average value, taking an integer, and expressing the integer by using a mm unit. The average value is the fluidity value of the cement mortar; the test should be completed within 6min from the start of the mortar water addition to the end of the diameter measurement.

The cement mortar fluidity apparatus at present is when using, and most direct mount places on ground to contact with ground for a long time, reduce equipment life because of ground humidity easily. In addition, since the height of the cement mortar fluidity tester is often low, it is usually necessary to bend down to operate the tester. Therefore, in some prior art, a simple supporting table is built on the ground, the cement fineness negative pressure screen analyzer is directly arranged on the supporting table and separated from the ground, and the height of the cement mortar fluidity tester is increased, so that the operation is convenient; however, the supporting table top has a simple structure, and cannot be adjusted in height according to different operators, so that the supporting table top needs to be further improved.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an improved cement mortar fluidity tester, which can adjust the height of the cement mortar fluidity tester according to the heights of different operators by installing a lifting base at the bottom thereof, and has the advantages of simple structure, low production cost and wide application range; and in the adjusting process, the two sides of the lifting frame synchronously displace, so that the overall stability in the test process can be effectively guaranteed.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a cement mortar fluidity tester comprises a rack, and an upper disc, a lower disc, a motor, a push rod, a cam and a lifting base which are arranged on the rack, wherein the upper end of the push rod is connected with the upper disc, the lower end of the push rod penetrates through the center of the rack and is abutted against the cam, the other end of the cam is connected with an output shaft of the motor, the motor can drive the upper disc to vertically jump through the cam and the push rod, a die sleeve for shaping cement mortar is arranged on the upper end surface of the upper disc, the bottom of the rack is connected with the lower disc, and the lower end of the lower disc is also provided with the lifting base; the lifting base comprises an upper mounting plate, a lower mounting plate and a lifting frame hinged in an X shape, wherein first sliding grooves are formed in two sides of the lower end surface of the upper mounting plate, and second sliding grooves are formed in two sides of the upper end surface of the lower mounting plate; the one end of crane is articulated respectively to be fixed first spout with in the second spout, the other end respectively swing joint be in first spout with in the second spout, the middle part of crane is equipped with the connecting axle, the upper end of crane is equipped with a screw rod, the screw rod pass the crane about both ends and with the both ends threaded connection of crane, the one end of screw rod is connected the leader perpendicularly, rotates the handle can drive the crane is followed first spout with the second spout horizontal slip, thereby drives go up the mounting panel and reciprocate.

Preferably, the crane is further provided with an upper roller and a lower roller at one end movably connected with the first chute and the second chute, the upper roller is slidably mounted in the first chute, and the lower roller is slidably mounted in the second chute.

Preferably, a limiting block is arranged on the screw rod far away from one end of the handle, and the size of the limiting block is larger than the sectional size of the screw rod.

Preferably, both ends of the first sliding groove and the second sliding groove are provided with limit baffles.

Preferably, the lower disc is fixedly connected with the top of the lifting base through a plurality of positioning assemblies, each positioning assembly comprises a fixing bolt and an L-shaped pressing plate, the pressing plates are rotatably mounted on the upper end face of the lifting base, and the fixing bolts sequentially penetrate through the pressing plates and the lower disc and extend into the lifting base to fixedly connect the lower disc with the lifting base.

Preferably, the number of the positioning assemblies is 3-6.

The utility model has the advantages that: the utility model provides a cement mortar fluidity tester, through installing a lifting base in its bottom, can increase the overall height of cement mortar fluidity tester on the one hand, thus make things convenient for the operating personnel of different heights to carry out operation control to it; on the other hand, the direct contact between the equipment and the ground can be avoided, so that the influence of ground moisture on the equipment is reduced, and the service life of the equipment can be effectively prolonged; the structure is simple, manual adjustment can be performed, the production cost is low, and the application range is wide; in the adjusting process, the two sides of the lifting frame synchronously displace, and the overall stability during testing can be effectively guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the lifting base of the present invention.

Figure 3 is the structure schematic diagram of the lifting frame of the utility model.

Description of reference numerals:

1. a frame; 2. an upper disc; 3. a lower disc; 4. a motor; 5. a push rod; 6. a cam; 7. a lifting base; 71. an upper mounting plate; 711. a first chute; 72. a lower mounting plate; 721. a second chute; 73. a lifting frame; 74. a screw; 75. a handle; 76. a connecting shaft; 77. an upper roller; 78. a lower roller; 79. a limiting block; 7a, a limit baffle; 8. die sleeve; 9. a positioning assembly; 91. fixing the bolt; 92. and (7) pressing a plate.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.

Example (b):

referring to fig. 1 to 3, a cement mortar fluidity tester includes a frame 1, and an upper disc 2, a lower disc 3, a motor 4, a push rod 5, a cam 6 and a lifting base 7 which are mounted on the frame 1, wherein the upper end of the push rod 5 is connected to the upper disc 2, the lower end of the push rod 5 passes through the center of the frame 1 and abuts against the cam 6, the other end of the cam 6 is connected to an output shaft of the motor 4, the motor 4 can drive the upper disc 2 to move up and down through the cam 6 and the push rod 5, a mold sleeve 8 for setting cement mortar is disposed on the upper end surface of the upper disc 2, the bottom of the frame 91 is connected to the lower disc 3, and the lifting base 7 is disposed on the lower end of the lower disc 3; the lifting base 7 comprises an upper mounting plate 71, a lower mounting plate 72 and a lifting frame 73 which is hinged in an X shape, wherein two sides of the lower end face of the upper mounting plate 71 are provided with first sliding grooves 711, and two sides of the upper end face of the lower mounting plate 72 are provided with second sliding grooves 721; one end of the lifting frame 73 is hinged and fixed in the first sliding groove 711 and the second sliding groove 721 respectively, the other end of the lifting frame 73 is movably connected in the first sliding groove 711 and the second sliding groove 721 respectively, the middle part of the lifting frame 73 is provided with a connecting shaft 76, the upper end of the lifting frame 73 is provided with a screw 74, the screw 74 penetrates through the left end and the right end of the lifting frame 73 and is in threaded connection with the two ends of the lifting frame 73, one end of the screw 74 is vertically connected with a handle 75, and the handle 75 can be rotated to drive the lifting frame 73 to slide left and right along the first sliding groove 711 and the second sliding groove 721 so as to drive the upper mounting plate 71 to move up and down.

Specifically, in the illustrated embodiment, the screw thread turning directions of the two ends of the screw 74 can be set to be opposite turning directions, and the two ends are respectively in threaded connection with the left side and the right side of the upper end of the lifting frame 73, when the lifting operation is required, the handle 75 can be manually turned clockwise, so that the lifting frame 73 can be pulled to slide inwards along the first sliding groove 711 and the second sliding groove 721, and the upper mounting plate 71 is driven to be gradually lifted; on the contrary, if the lowering operation is required, the handle 75 can be manually rotated counterclockwise, so that the lifting frame 73 can slide outwards along the first sliding groove 711 and the second sliding groove 721, the upper mounting plate 71 is driven to be gradually lowered, and the overall height of the device can be lowered. In the embodiment, the lifting base 7 is arranged at the bottom of the lower disc 3, so that on one hand, the overall height of the cement mortar fluidity tester can be increased, and operators with different heights can conveniently operate and control the cement mortar fluidity tester; on the other hand, the direct contact between the equipment and the ground can be avoided, so that the influence of ground moisture on the equipment is reduced, and the service life of the equipment can be effectively prolonged; the structure is simple, manual adjustment can be performed, the production cost is low, and the application range is wide; in the adjusting process, the two sides of the lifting frame synchronously displace, and the overall stability during testing can be effectively guaranteed.

With reference to fig. 3, an upper roller 77 and a lower roller 78 are further installed at one end of the lifting frame 73 movably connected to the first sliding groove 711 and the second sliding groove 721, the upper roller 77 is slidably installed in the first sliding groove 711, and the lower roller 78 is slidably installed in the second sliding groove, so that a roller structure is provided, and the sliding effect is further improved.

In this embodiment, a limit block 79 is arranged on the screw 74 far away from one end of the handle 75, the size of the limit block 79 is larger than the size of the cross section of the screw 74, and the limit block 79 can prevent one end of the screw from being screwed out and falling off in the rotating process, so that the safety and stability in the operating process are ensured; similarly, the two ends of the first sliding groove 711 and the second sliding groove 721 are respectively provided with a limiting baffle 7a, and the arrangement of the limiting baffles 7a can prevent the roller from sliding out of the sliding grooves when the operation is not proper.

Continuing to combine with fig. 1, the lower disc 3 is connected and fixed with the top of the lifting base 7 through a plurality of positioning assemblies 9, each positioning assembly 9 includes a fixing bolt 91 and an L-shaped pressing plate 92, the pressing plate 92 is rotatably mounted on the upper end surface of the lifting base 7, and the fixing bolt 91 sequentially penetrates through the pressing plate 92 and the lower disc 3 and extends into the lifting base 7 to connect and fix the lower disc 3 with the lifting base 7; the number of the positioning assemblies 9 is 3-6. Lower disc and lift base can dismantle through a plurality of locating component 9 and be connected, conveniently carry out assembly and disassembly installation transport etc. can effectively improve the stability of connecting through clamp plate 92 and fixing bolt 91.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a cement mortar fluidity apparatus which characterized in that: the cement mortar shaping machine comprises a rack (1), an upper disc (2), a lower disc (3), a motor (4), a push rod (5), a cam (6) and a lifting base (7), wherein the upper end of the push rod (5) is connected with the upper disc (2), the lower end of the push rod penetrates through the center of the rack (1) and is abutted against the cam (6), the other end of the cam (6) is connected with an output shaft of the motor (4), the motor (4) can drive the upper disc (2) to vertically jump through the cam (6) and the push rod (5), a die sleeve (8) used for shaping cement mortar is arranged on the upper end face of the upper disc (2), the bottom of the rack 91 is connected with the lower disc (3), and the lifting base (7) is further arranged at the lower end of the lower disc (3); the lifting base (7) comprises an upper mounting plate (71), a lower mounting plate (72) and a lifting frame (73) which is hinged in an X shape, wherein first sliding grooves (711) are formed in two sides of the lower end face of the upper mounting plate (71), and second sliding grooves (721) are formed in two sides of the upper end face of the lower mounting plate (72); one end of the lifting frame (73) is hinged and fixed in the first sliding groove (711) and the second sliding groove (721) respectively, the other end of the lifting frame (73) is movably connected in the first sliding groove (711) and the second sliding groove (721) respectively, a connecting shaft (76) is arranged in the middle of the lifting frame (73), a screw rod (74) is arranged at the upper end of the lifting frame (73), the screw rod (74) penetrates through the left end and the right end of the lifting frame (73) and is in threaded connection with the two ends of the lifting frame (73), a handle (75) is vertically connected with one end of the screw rod (74), the handle (75) is rotated to drive the lifting frame (73) to slide left and right along the first sliding groove (711) and the second sliding groove (721), and therefore the upper mounting plate (71) is driven to move up and down.

2. The cement mortar fluidity tester according to claim 1, characterized in that: an upper roller (77) and a lower roller (78) are further mounted at one end of the lifting frame (73) movably connected with the first sliding groove (711) and the second sliding groove (721), the upper roller (77) is slidably mounted in the first sliding groove (711), and the lower roller (78) is slidably mounted in the second sliding groove.

3. The cement mortar fluidity tester according to claim 1, characterized in that: and a limiting block (79) is arranged on the screw rod far away from one end of the handle (75), and the size of the limiting block (79) is larger than the sectional size of the screw rod (74).

4. The cement mortar fluidity tester according to claim 1, characterized in that: and two ends of the first sliding groove (711) and the second sliding groove (721) are respectively provided with a limiting baffle (7 a).

5. The cement mortar fluidity tester according to claim 1, characterized in that: lower disc (3) with the top of lifting pedestal (7) is connected fixedly through a plurality of locating component (9), locating component (9) include fixing bolt (91) and clamp plate (92) that are L shape, rotatable the installing of clamp plate (92) the up end of lifting pedestal (7), fixing bolt (91) pass in proper order clamp plate (92) with lower disc (3) and extend to in lifting pedestal (7), will lower disc (3) with lifting pedestal (7) are connected fixedly.

6. The cement mortar fluidity tester according to claim 5, characterized in that: the number of the positioning assemblies (9) is 3-6.