CN210269506U

CN210269506U - Cement mortar fluidity tester

Info

Publication number: CN210269506U
Application number: CN201921252713.1U
Authority: CN
Inventors: 马展祥; 覃善总; 黄昌玉
Original assignee: Guangzhou Tianyuan Concrete Co Ltd
Current assignee: Guangzhou Tianyuan Concrete Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-04-07
Anticipated expiration: 2029-08-02

Abstract

The utility model relates to a cement mortar fluidity tester, which comprises a base, wherein the base is provided with a plurality of support blocks, one end of each support block, which is far away from the base, is provided with a sleeve, the sleeve is positioned in the middle of the plurality of support blocks, a push rod capable of reciprocating along the length direction of the sleeve is arranged in the sleeve, one end of the push rod, which is far away from the sleeve, is provided with a disc, the other end of the push rod, which is far away from the disc, is provided with a cam in a low joint manner, the middle of the cam is provided with a rotating; wherein a supporting shoe sets up the through-hole that supplies the loading board to make a round trip to reciprocate from top to bottom, and the one side that the loading board deviates from servo motor is equipped with the bearing, and the bearing in-connection has the screw rod, and the one end that the bearing was kept away from to the screw rod runs through the base and is connected with the base, and the screw rod is equipped with the driving piece that orders about the screw rod and make a round trip to reciprocate from top to bottom. Compared with the prior art, the utility model, the accuracy of cement mortar mobility experimental result has been improved.

Description

Cement mortar fluidity tester

Technical Field

The utility model belongs to the technical field of the technique of cement capability test equipment and specifically relates to a cement mortar fluidity apparatus is related to.

Background

The fluidity of cement mortar is a measure representing the fluidity of cement mortar, and at a certain water addition amount, the fluidity of cement mortar depends on the water demand of cement. Cement mortar fluidity is expressed in terms of the average diameter of the cement mortar spread over the flow table. At present, the fluidity of cement mortar is generally measured by using a cement mortar fluidity tester.

The current Chinese utility model with the publication number of CN206450548U discloses a cement mortar fluidity tester, which comprises a frame, wherein the frame is provided with a vertically oriented sleeve and a plurality of supporting blocks for supporting the sleeve, a push rod capable of moving along the sleeve is arranged in the sleeve, one end of the push rod far away from the frame is fixedly connected with a disc, one end of the push rod close to the frame is abutted with a cam, the axle center of the cam is fixedly connected with a driving rod perpendicular to the cam, one of the supporting blocks is provided with a through groove penetrating through the supporting block, the driving rod is connected with a motor for driving the driving rod to rotate after passing through the through groove, the motor is provided with a mounting table for bearing the motor, the mounting table is cuboid and abutted with the plane of the supporting block, the mounting table is in threaded connection with an adjusting shaft in vertical orientation, and after the adjusting shaft rotates, the mounting table moves along the axial, the distance between the cam and the push rod changes.

The above prior art solutions have the following drawbacks: adjust the distance between cam and the push rod through the regulating spindle, however, cement mortar fluidity apparatus during normal work, the motor orders about the cam and promotes reciprocating motion from top to bottom of push rod, at this moment, the push rod also extrudees the cam downwards, make the cam have a decurrent power, this power can order about the regulating spindle and rotate, make the mount table along regulating spindle length direction downstream, lead to the cam and the underjoint of push rod to weaken gradually, make the amplitude of disc diminish, thereby lead to the cement mortar fluidity experimental result deviation great.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cement mortar fluidity apparatus, it has solved cement mortar fluidity apparatus during operation, and the regulating spindle rotates and leads to the mount table to follow regulating spindle length direction downstream for the underjoint of cam and push rod weakens gradually, the problem that the amplitude of disc diminishes, thereby improves the accuracy of cement mortar fluidity experimental result.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a cement mortar fluidity tester comprises a base, wherein a plurality of supporting blocks are arranged on the base, a sleeve is arranged at one end, away from the base, of each supporting block, the sleeve is positioned in the middle of the plurality of supporting blocks, a push rod capable of reciprocating along the length direction of the sleeve is arranged in the sleeve, a disc is arranged at one end, away from the sleeve, of each push rod, a cam is connected to the other end, away from the disc, of each push rod in a low mode, a rotating shaft is arranged in the middle of each cam, one end, away from the cam, of each rotating; one supporting block is provided with a through hole for the bearing plate to reciprocate up and down, a bearing is arranged on one surface of the bearing plate, which is far away from the servo motor, a screw rod is connected in the bearing, one end of the screw rod, which is far away from the bearing, penetrates through the base and is connected with the base, a driving piece for driving the screw rod to reciprocate up and down is arranged on the screw rod, and a locking component for locking the screw rod is arranged on the base.

By adopting the technical scheme, the servo motor drives the rotating shaft to rotate, and the rotating shaft drives the cam to rotate; because the cam and the push rod are mutually connected in a low way, the push rod reciprocates up and down along the length direction of the sleeve along with the rotation of the cam, so that the disc is driven to reciprocate up and down; the bearing plate is arranged in the through hole formed in the supporting block, so that the bearing plate can be abutted against the inner wall of the through hole, and when the screw rod rotates, the bearing plate is mutually separated from the inner wall of the through hole, so that the bearing plate moves relative to the screw rod, the bearing plate moves up and down along the length direction of the screw rod, the distance between the cam and the push rod is adjusted, and the cam and the push rod can be conveniently adjusted to be in the optimal abutting state; the driving piece drives the screw rod to rotate, so that the bearing plate is adjusted to reciprocate up and down, and the cam and the push rod are conveniently adjusted to be in the optimal abutting state; the locking assembly is used for limiting the rotation of the screw rod, so that the screw rod cannot rotate when the cement mortar fluidity tester works, and the accuracy of an experimental result of the cement mortar fluidity tester is improved. The utility model has the advantages of being scientific and reasonable in design, the result is simple, and the operation of being convenient for compares with prior art, utilizes locking Assembly locking screw to the rotation takes place by oneself for the restriction screw rod, thereby improves the accuracy of cement mortar mobility experimental result.

The utility model discloses further set up to: the driving piece is specifically many actuating levers, and many actuating levers regular distribution are in the circumference of screw rod, and the actuating lever is located between bearing and the base.

Through adopting above-mentioned technical scheme, distribute along the circumference rule of screw rod to root actuating lever to utilize the actuating lever to order about the screw rod and rotate, thereby realize adjusting the up-and-down reciprocating motion of loading board, and then realize adjusting the cam and the low state that connects of push rod.

The utility model discloses further set up to: the locking assembly comprises a locking assembly mounting block and a bolt, wherein the mounting block is fixed on the base, and the bolt penetrates through the protruding end of the mounting block and is connected with the screw rod in a low mode.

By adopting the technical scheme, when the screw is required to be fixed, the bolt is screwed, so that the bolt and the screw are mutually extruded and connected in a low way, and the rotation of the screw is limited.

The utility model discloses further set up to: and one end of the bolt is provided with a knob.

Through adopting above-mentioned technical scheme, the knob can increase the frictional force of twisting the bolt for it is easier to twist the bolt, so that adjust clamping screw.

The utility model discloses further set up to: the push rod is provided with a groove at one end abutting against the cam, a pin shaft is arranged in the groove, a wheel is arranged on the pin shaft sleeve, and the wheel is connected with the cam in a low mode.

Through adopting above-mentioned technical scheme, wheel and cam underconnect reduced the resistance for cam and push rod underconnect, alleviateed the wearing and tearing of cam to the life of extension cam.

The utility model discloses further set up to: the circumference of the cam is provided with a wheel groove for the wheel to be clamped in.

Through adopting above-mentioned technical scheme, the race of cam is gone into to the wheel card for wheel and cam motion time are regular more and orderly.

The utility model discloses further set up to: the width of the wheel groove is larger than that of the wheel.

Through adopting above-mentioned technical scheme to the wheel card is gone into the race, is favorable to cam and wheel to contradict.

To sum up, the utility model discloses a beneficial technological effect does:

1. the utility model has scientific and reasonable design, simple result and convenient operation, and compared with the prior art, the screw rod is locked by the locking component to limit the screw rod to rotate by itself, thereby improving the accuracy of the experimental result of the fluidity of the cement mortar;

2. the one end that the push rod contradicts with the cam is equipped with the recess, is equipped with the round pin axle in the recess, and the round pin axle sleeve is equipped with the wheel, and wheel and cam underconnect for cam and push rod underconnect and reduced the resistance, alleviateed the wearing and tearing of cam to the life of extension cam.

Drawings

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

fig. 2 is a schematic structural diagram of the present invention.

In the figure, 1, a base; 2. a support block; 21. a through hole; 3. a sleeve; 31. a push rod; 311. a groove; 312. a pin shaft; 313. a wheel; 32. a disc; 4. a cam; 41. a wheel groove; 5. a rotating shaft; 6. a servo motor; 7. a carrier plate; 71. a bearing; 8. a screw; 9. a locking assembly; 91. mounting blocks; 92. a bolt; 921. a knob; 10. a drive rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, in order to disclose a cement mortar fluidity tester of the utility model, the tester comprises a base 1, a plurality of fast supporting blocks 2 are arranged on the base 1, a sleeve 3 is arranged at one end of the supporting block 2 far away from the base 1, the sleeve 3 is positioned in the middle of the fast supporting blocks 2, a push rod 31 capable of reciprocating back and forth along the length direction of the sleeve 3 is arranged in the sleeve 3, and a disc 32 is arranged at one end of the push rod 31 far away from the sleeve 3; in this embodiment, the supporting blocks 2 are three, or four or five, etc., the three supporting blocks 2 are regularly distributed along the circumference of the sleeve 3, and the disc 32 is located above the push rod 31.

Referring to fig. 1 and 2, a screw 8 is arranged on a base 1, one end of the screw 8, which is far away from the base 1, is connected with a bearing 71, the bearing 71 is arranged on a bearing plate 7, a servo motor 6 is also arranged on the bearing plate 7, the servo motor 6 is fixed with a rotating shaft 5, one end of the rotating shaft 5, which is far away from the servo motor 6, is provided with a cam 4, and the cam 4 is positioned below a push rod 31 and is connected with one end of the push rod 31 in a low way; in the embodiment, the screw 8 penetrates through the base 1 and is in threaded connection with the base 1, and the screw 8 is perpendicular to the base 1; one end of the screw 8, which is far away from the base 1, is movably connected with a bearing 71, the bearing 71 is arranged on the bearing plate 7, the bearing plate 7 is supported by the screw 8, and a servo motor 6 is arranged on one surface, which is far away from the bearing 71, of the bearing plate 7; an output shaft of the servo motor 6 is fixed with the rotating shaft 5, one end, far away from the servo motor 6, of the rotating shaft 5 is fixed with the middle of the cam 4, and the servo motor 6 controls the cam 4 to rotate through the rotating shaft 5. One end of the push rod 31, which is abutted against the cam 4, is provided with a groove 311, a pin 312 is arranged in the groove 311, the pin 312 is sleeved with a wheel 313, the wheel 313 rotates by taking the pin 312 as an axis, and the wheel 313 is in low joint with the cam 4, so that the low joint of the push rod 31 and the cam 4 is optimized; the circumference of the cam 4 is provided with a wheel groove 41, the wheel 313 is clamped in the wheel groove 41, the low connection between the wheel 313 and the cam 4 is further optimized, and the wheel groove 41 limits the wheel 313 to be separated from the cam 4, so that the mutual extrusion motion of the wheel 313 and the cam 4 is more regular and ordered; the width of the wheel groove 41 is greater than the width of the wheel 313 so that the wheel 313 snaps into the wheel groove 41. One of the supporting plates is provided with a through hole 21, the bearing plate 7 is arranged in the through hole 21, when the screw 8 rotates, the bearing plate 7 is connected with the supporting block 2 in a low mode so as to limit the bearing plate 7 to synchronously rotate in the screw 8, meanwhile, along with the rotation of the screw 8, the bearing plate 7 reciprocates up and down in the through hole 21 to realize the connection of the control cam 4 and the wheel 313, and therefore the amplitude of the disc 32 is controlled.

Referring to fig. 1 and 2, the screw 8 is provided with a driving member for driving the screw 8 to reciprocate up and down, in this embodiment, the driving member is specifically four driving rods 10, the four driving rods 10 are regularly distributed on the circumference of the screw 8, the driving rods 10 are located between the bearing 71 and the base 1, and the driving rods 10 are used for driving the screw 8 to rotate, so that the screw 8 reciprocates up and down on the base 1, and therefore the low connection between the control cam 4 and the wheel 313 is realized.

Referring to fig. 1 and 2, a locking assembly 9 for locking a screw 8 is provided on the base 1; in this embodiment, the locking assembly 9 is provided with a mounting block 91 and a bolt 92, the mounting block 91 is fixed on the base 1, the bolt 92 passes through the protruding end of the mounting block 91 and is connected with the screw 8 in a low mode, and when the screw 8 does not need to rotate, the bolt 92 is screwed, so that the bolt 92 and the screw 8 are mutually pressed to limit the rotation of the screw 8. One end of bolt 92 is equipped with knob 921, and knob 921 can increase the frictional force of screwing bolt 92 for it is easier to screw bolt 92, so that adjusting fixing screw 8.

The implementation principle of the embodiment is as follows: the servo motor 6 drives the rotating shaft 5 to rotate, and the rotating shaft 5 drives the cam 4 to rotate; because the cam 4 and the push rod 31 are in low contact with each other, the push rod 31 reciprocates up and down along the length direction of the sleeve 3 along with the rotation of the cam 4, so as to drive the disc 32 to reciprocate up and down; because the bearing plate 7 is arranged in the through hole 21 formed in the supporting block 2, the bearing plate 7 can be abutted against the inner wall of the through hole 21, when the screw 8 rotates, the bearing plate 7 is mutually separated from the inner wall of the through hole 21, so that the bearing plate 7 moves relative to the screw 8, the bearing plate 7 moves up and down along the length direction of the screw 8, the distance between the cam 4 and the push rod 31 is adjusted, and the cam 4 and the push rod 31 are conveniently adjusted to be in the optimal abutting state; the driving rod 10 drives the screw rod 8 to rotate, so that the adjusting bearing plate 7 can reciprocate up and down, and the adjusting cam 4 and the push rod 31 are conveniently placed in the optimal abutting state; the bolt 92 is used for limiting the rotation of the screw rod 8, so that the screw rod 8 cannot rotate when the cement mortar fluidity tester works, and the accuracy of the experimental result of the cement mortar fluidity tester is improved. The utility model has the advantages of being scientific and reasonable in design, the result is simple, and the operation of being convenient for compares with prior art, utilizes locking Assembly 9 locking screw 8 to restriction screw 8 takes place to rotate by oneself, thereby improves the accuracy of cement mortar mobility experimental result.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The cement mortar fluidity tester comprises a base (1), wherein a plurality of quick supporting blocks (2) are arranged on the base (1), a sleeve (3) is arranged at one end, far away from the base (1), of each supporting block (2), the sleeve (3) is positioned in the middle of the corresponding quick supporting block (2), a push rod (31) capable of reciprocating back and forth along the length direction of the sleeve (3) is arranged in the sleeve (3), a disc (32) is arranged at one end, far away from the sleeve (3), of the push rod (31), a cam (4) is connected to the other end, far away from the disc (32), of the push rod (31), a rotating shaft (5) is arranged in the middle of the cam (4), one end, far away from the cam (4), of the rotating shaft (5) is fixed to a servo motor (; wherein a supporting shoe (2) is offered and is supplied bearing board (7) through-hole (21) of reciprocating motion from top to bottom, its characterized in that: the bearing board (7) deviates from one side of servo motor (6) is equipped with bearing (71), bearing (71) in-connection has screw rod (8), keep away from screw rod (8) the one end of bearing (71) runs through base (1) and is connected with base (1), and screw rod (8) are equipped with the driving piece that orders about screw rod (8) reciprocating motion from top to bottom, be equipped with locking Assembly (9) of locking screw rod (8) on base (1).

2. The cement mortar fluidity tester according to claim 1, characterized in that: the driving piece is specifically a plurality of driving rods (10), the plurality of driving rods (10) are regularly distributed on the circumference of the screw rod (8), and the driving rods (10) are located between the bearing (71) and the base (1).

3. The cement mortar fluidity tester according to claim 1, characterized in that: the locking assembly (9) comprises a mounting block (91) and a bolt (92), the mounting block (91) is fixed on the base (1), and the bolt (92) penetrates through the protruding end of the mounting block (91) and is connected with the screw rod (8) in a low mode.

4. The cement mortar fluidity tester according to claim 3, characterized in that: and one end of the bolt (92) is provided with a knob (921).

5. The cement mortar fluidity tester according to claim 1, characterized in that: one end of the push rod (31) abutting against the cam (4) is provided with a groove (311), a pin shaft (312) is arranged in the groove (311), a wheel (313) is sleeved on the pin shaft (312), and the wheel (313) is connected with the cam (4) in a low mode.

6. The cement mortar fluidity tester according to claim 5, characterized in that: the circumference of the cam (4) is provided with a wheel groove (41) for the wheel (313) to be clamped in.

7. The cement mortar fluidity tester according to claim 6, characterized in that: the width of the wheel groove (41) is larger than that of the wheel (313).