CN207623124U - A kind of bearing-ratio test instrument - Google Patents

Abstract

The utility model discloses a kind of bearing-ratio test instrument, it is related to testing equipment field, its drip irrigation device includes workbench, the workbench is equipped with lifting disk, the lifting disk is equipped with examination cylinder, it is equipped with the elevating mechanism for driving lifting disk to move up and down in the workbench, further includes the control device for being useful for control elevating mechanism work, the control device includes the operation key for driving the motor of elevating mechanism, whether starting for controlling motor.There is the utility model easy adjustment to try cylinder height, the effect of rapid operation.

Description

A kind of bearing-ratio test instrument

Technical field

The utility model is related to testing equipment fields, and more specifically it is related to a kind of bearing-ratio test instrument.

Background technology

Bearing-ratio test instrument is suitable for carrying out bearing-ratio test after various soil are compacted with mixture in defined examination cylinder mould, To determine designed road surface, sub-surface, underlayment, the bearing capacity of roadbed material layer, be soil test must match instrument it One.

In the prior art, the Chinese patent document that Authorization Notice No. is CN206369671U discloses a kind of soil inspection Survey and use bearing-ratio test instrument, include examination cylinder and elevating mechanism, elevating mechanism include driving handwheel, transmission mechanism, motion bar and The lifting disk being fixed on motion bar, driving handwheel is up and down by transmission mechanism control lifting disk, and examination cylinder is fixed on lifting On disk, for different samples, the height of lifting disk can be changed by operating personnel, and examination cylinder and detection machine is reduced or increased The distance between structure can also drive lifting disk and examination cylinder up and down, can reduce injection amount when injection bar measures in this way, To make the error of measurement reduce, keep its result more accurate, and then be conveniently operated detection of the personnel to soil.

But staff is needed to rotate handwheel by manpower by the way of turn disc, due to being placed in examination cylinder Different samples causes to need larger strength when rotating handwheel, and the smaller people's operation of some strength is painstaking, need to be changed Into.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of bearing-ratio test instrument, have Easy adjustment tries cylinder height, the effect of rapid operation.

To achieve the above object, the utility model provides following technical solution：A kind of bearing-ratio test instrument, includes work Make platform, the workbench is equipped with lifting disk, and the lifting disk is equipped with examination cylinder, is equipped in the workbench for driving lifting The elevating mechanism that disk moves up and down, further includes the control device for being useful for control elevating mechanism work, and the control device includes The motor for being useful for driving elevating mechanism, the operation key whether started for controlling motor.

By using above-mentioned technical proposal, motor rotation is controlled by operation key, and lifting disk is driven to move up and down, root According to different samples, easily the height of lifting disk can be changed, be reduced or increased examination cylinder and testing agency between away from From, can reduce injection amount when injection bar measures in this way keeps its result more accurate to make the error of measurement reduce, from And keep the assessment of project cost more accurate, and compared to relatively rotation handwheel, this operation key control have labour-saving benefit manually, side Convenient to operate.

The utility model is further arranged to：The operation key include for drive lifting disk rise rising button and Declines button for driving lifting disk to decline.

By using above-mentioned technical proposal, it is divided into rising button and declines button, different buttons corresponds to lifting disk difference Moving direction, be easy to use personnel differentiate.

The utility model is further arranged to：The control device includes：It is pressed for detecting rising button or declining Whether button is pressed to export the detection circuit of detection signal, be coupled to detection circuit and in response to detection signal to export control letter Number control circuit, be coupled to control circuit and in response to control signal to control the execution circuit of motor positive and inverse；Work as rising When button is pressed, motor rotates forward, and lifting disk rises；When declines button is pressed, motor reversal, and lifting disk declines.

By using above-mentioned technical proposal, a motor positive and inverse is controlled by two buttons, to realize rotating disc Raising and lowering, facilitate control.

The utility model is further arranged to：The detection circuit includes exporting the rise detection circuit of rise detection signal Decline the lower down detection circuit of detection signal with output, the rising button and the declines button are inching button.

By using above-mentioned technical proposal, inching button starts motor when pressing, and motor stops after release, is adjusted Lifting disk is located at an arbitrary position, and by being adjusted repeatedly so that lifting disk is adjusted to most suitable position.

The utility model is further arranged to：The control circuit includes to be coupled to rise detection circuit and in response to upper It rises the rising circuit of signal, be coupled to lower down detection circuit and the decline circuit in response to declining detection signal, the control electricity Road includes for preventing from rising the protection circuit that circuit and decline circuit work at the same time.

By using above-mentioned technical proposal, prevents from rising circuit and declining circuit working at the same time, avoid motor and mix Random possibility.

The utility model is further arranged to：The circuit that rises includes the rising instruction in response to rise detection signal Circuit, the circuit that declines includes the decline indicating circuit in response to declining detection signal.

By using above-mentioned technical proposal, rises indicating circuit and decline indicating circuit plays instruction operating personnel and should set Standby normal work.

The utility model is further arranged to：The elevating mechanism includes the rotating bar positioned at lifting disk lower end, described It is threaded with rotating disc in rotating bar, support plate is equipped in the workbench, the support plate is equipped with and is embedded in rotating disc It is interior and limit the stabilizing ring that rotating disc moves horizontally, it is equipped in the workbench and is moved along rotating bar direction for limiting rotating disc Stabilization clamp edge, be engaged with driving gear on the rotating disc, the motor shaft of the driving gear and the motor is fixed.

By using above-mentioned technical proposal, stabilizing ring limits the movement in rotating disc horizontal direction, and stabilization clamp is along limitation Rotation moving on rotating bar direction, when turn disc, rotating bar moves up and down, when motor is stopped, screw thread Connection structure stability is stronger, and the position of lifting disk is more stablized.

The utility model is further arranged to：The cavity being provided in the lifting disk at axle center is set in the cavity There are bearing, outer shroud and the lifting disk of the bearing to fix, the rotating bar is inserted into the cavity and consolidates with the inner ring of bearing It is fixed.

By using above-mentioned technical proposal, the setting of bearing makes rotating bar in rotation, and lifting disk will not rotate, When adjusting the height of lifting disk so that examination cylinder is more stablized.

In conclusion the utility model is risen or declined to control lifting disk using motor positive and inverse, and pass through rising Button can the mode of declines button control, be conveniently operated personnel's use, there is easy adjustment to try cylinder height, the effect of rapid operation Fruit.

Description of the drawings

Fig. 1 is the overall schematic of utility model；

Fig. 2 is the partial cutaway schematic of utility model；

Fig. 3 is the enlarged diagram at A in Fig. 2；

Fig. 4 is the circuit diagram at the detection circuit and control circuit of utility model；

Fig. 5 is the circuit diagram at the execution circuit of utility model.

Reference sign：1, workbench；2, rising button；3, declines button；4, lifting disk；5, cylinder is tried；6, vertical pole；7、 Cross bar；8, bolt；9, testing agency；10, it measures one's own ability ring；11, pole；12, dial gauge；13, injection bar；14, elevating mechanism；15、 Rotating bar；16, rotating disc；17, stabilizing ring；18, stabilization clamp edge；19, driving gear；20, motor；21, cavity；22, bearing； 23, detection circuit；24, control circuit；25, execution circuit；26, rise detection circuit；27, lower down detection circuit；28, protection electricity Road；29, rise circuit；30, decline circuit；31, support plate；32, rise indicating circuit；33, decline indicating circuit.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing.

Present embodiment discloses a kind of bearing-ratio test instrument, as shown in Figure 1, including the work that bottom is rectangular shape Platform 1 is provided with rising button 2 and declines button 3 on the workbench 1.It is slidably equipped with lifting disk 4 in disk form on workbench 1, rises Fixed placement has the examination cylinder 5 concentric with lifting disk 4 on drop disk 4.

As shown in Figure 1, being further fixed on the vertical pole 6 positioned at 4 both sides of lifting disk on workbench 1, two vertical poles 6 are same across having Root cross bar 7 is equipped in the circumferential direction of two vertical poles 6 and is threadedly coupled with vertical pole 6 and positioned at the bolt 8 of 7 upper and lower ends of cross bar, should Bolt 8 plays the role of fixed transverse rod 7.

As shown in Figure 1, lower section is equipped with testing agency 9 among cross bar 7, the testing agency 9 is whole in annular shape, including fixation Ring 10 of measuring one's own ability below cross bar 7,10 centre of ring of measuring one's own ability are equipped with a pole 11, dial gauge 12, percentage are fixed on pole 11 The measurement axle position of table 12 is in the bottom of dial gauge 12.The bottom for measuring axis is connected with injection bar 13, injection bar 13 at work into Enter to try cylinder 5, then the bearing capacity of material is measured.

As depicted in figs. 1 and 2,4 lower end of lifting disk is equipped with elevating mechanism 14, which includes being located at lifting disk 4 The rotating bar 15 of bottom end, is threaded with rotating disc 16 in the circumferential direction of rotating bar 15, and the rotating bar 15 is from the axis of rotating disc 16 It is passed through at the heart, integrally formed with support plate 31 in workbench 1, integrally formed with being embedded in rotating disc 16 and limit in support plate 31 The stabilizing ring 17 that rotating disc 16 processed moves horizontally is welded in workbench 1 and is moved along 15 direction of rotating bar for limiting rotating disc 16 Dynamic stabilization clamp is engaged with driving gear 19 along 18, rotating disc 16, is fixedly connected on driving gear 19 and is fixed on workbench 1 Interior motor 20, when motor 20 rotates, motor 20 drives driving gear 19 to rotate, and driving gear 19 drives 16 turns of rotating disc Dynamic, rotating disc 16 rotates so that rotating bar 15 rotates, so that rotating bar 15 drives lifting disk 4 to move up and down.

As shown in Figures 2 and 3, the cavity 21 being provided in lifting disk 4 at axle center is mounted with bearing 22 in cavity 21, And the outer shroud of the bearing 22 is fixed with lifting disk 4, rotating bar 15 is inserted into cavity 21 and is fixed with the inner ring of bearing 22, bearing 22 setting makes rotating bar 15 in rotation, and lifting disk 4 will not rotate, when adjusting the height of lifting disk 4 so that examination Cylinder 5 is more stablized.

As shown in Figure 1, Figure 4 and Figure 5, further include be useful for detection rising button 2 or declines button 3 whether press with defeated Go out to detect the detection circuit 23 of signal, be coupled to detection circuit 23 and exported in response to detection signal the control electricity of control signal Road 24 is coupled to control circuit 24 and in response to control signal to control the execution circuit 25 of 20 positive and negative rotation of motor；When rising is pressed When button 2 is pressed, motor 20 rotates forward, and lifting disk 4 rises；When declines button 3 is pressed, motor 20 inverts, and lifting disk 4 Decline.

Detection circuit 23 includes that the rise detection circuit 26 of output rise detection signal and output decline under detection signal Down detection circuit 27, rise detection circuit 26 are rising button 2, and lower down detection circuit 27 is declines button 3（Shown in Fig. 1）, should Rising button 2 is normally opened contact switch SB1, when normally opened contact switch SB1 is pressed, exports rise detection signal；Decline is pressed Button 3 is normally opened contact switch SB2, and when normally opened contact switch SB2 is pressed, output declines detection signal.Rising button 2 is under It is inching button to drop button 3.

Control circuit 24 includes to be coupled to rise detection circuit 26 and in response to the rising circuit 29 of rising signals, coupling In lower down detection circuit 27 and the decline circuit 30 in response to declining detection signal, control circuit 24 includes for preventing from rising The protection circuit 28 that circuit 29 and decline circuit 30 work at the same time.It includes triode Q1, preferably model to rise circuit 29 The base stage of the triode of S9013NPN types, triode Q1 is coupled to a contact of normally opened contact switch SB1, and normally opened contact is opened Another termination power VCC of SB1 is closed, the emitter of triode Q1 connects ground terminal, between the collector and power supply VCC of triode Q1 There is the coil of relay KM1 equipped with access, and the both ends inverse parallel of the coil of relay KM1 has sustained diode 1, when normally opened When contact switch SB1 is closed, triode Q1 conductings, the coil of relay KM1 obtains electric.It includes triode Q2 to decline circuit 30, It is preferred that the triode of model S9013NPN types, the base stage of triode Q2 is coupled to a contact of normally opened contact switch SB2, The emitter of another termination power VCC of normally opened contact switch SB2, triode Q1 connect ground terminal, the collector of triode Q1 with Access is equipped between power supply VCC the coil of relay KM2, and the both ends inverse parallel of the coil of relay KM2 has two pole of afterflow Pipe D2, when normally opened contact switch SB2 is closed, triode Q2 conducting, the coil of relay KM2 obtains electric.Protection circuit 28 include There is the normally-closed contact switch KM1- of the relay KM2 between the base stage for being connected serially to triode Q1 and the contact of normally opened contact switch Q1 The normally-closed contact of the 2 and relay KM1 being connected serially between the base stage of triode Q2 and the contact of normally opened contact switch Q2 switchs KM1-1, when the coil of relay KM1 obtains electric, normally-closed contact switch KM1-1 is disconnected, and presses normally opened contact switch again at this time SB2, triode Q2 are not turned on, the case where being worked at the same time so as to avoid two relays.

It includes the rising indicating circuit 32 in response to rise detection signal to rise circuit 29, rises indicating circuit 32 and includes There is the Light-emitting diode LED 1 between the emitter and ground terminal for being connected serially to triode Q1, when triode Q1 is connected, luminous two Pole pipe LED1 shines；It includes the decline indicating circuit 33 in response to declining detection signal to decline circuit 30, declines indicating circuit 33 include the Light-emitting diode LED 2 being connected serially between the emitter and ground terminal of triode Q2, when triode Q2 is connected, Light-emitting diode LED 2 shines.

As shown in Figure 1 and Figure 4, diode (LED) 1 is placed in the side of rising button 2, diode (LED) 2 be placed in decline by The side of button 3.

As shown in figure 5, execution circuit 25 includes to be series on the route of 20 positive patchcord of motor and be controlled by relay It the normally opened contact switch group KM1-3 of the coil of device KM1 and is series on the route of 20 inverting terminal of motor and is controlled by relay The normally opened contact switch group KM2-3 of the coil of device KM2, when the coil of relay KM1 obtains electric, normally opened contact switch group KM1-3 It is closed, motor 20 rotates forward；When the coil of relay KM2 obtains electric, normally opened contact switch group KM2-3 is closed, and motor 20 inverts.

The course of work is as follows：

When rising button 2 is pressed, the coil of triode Q1 conductings, relay KM1 obtains electric, the rotating forward of motor 20, actively Gear 19 rotates clockwise, and rotating disc 16 is driven to rotate, and rotating disc 16 is so that rotating bar 15 drives lifting disk 4 to rise；Work as decline When button 3 is pressed, the coil of triode Q2 conductings, relay KM2 obtains electric, the reversion of motor 20, and driving gear 19 is counterclockwise to be turned It is dynamic, drive rotating disc 16 to rotate, rotating disc 16 is so that rotating bar 15 drives lifting disk 4 to decline.

When operation, examination cylinder 5 is fixed on lifting disk 4, various soil and mixture are put into examination cylinder 5 and are compacted, then Bearing-ratio test is carried out to the sample after compacting using testing agency 9, to determine that its bearing capacity can for different samples The height of lifting disk 4 to be changed, examination the distance between cylinder 5 and testing agency 9 is reduced or increased, can reduce pass through in this way Enter injection amount when bar 13 measures keeps its result more accurate to make the error of measurement reduce, to make commenting for project cost It is more accurate to estimate.Rise or decline by can be automatically controled lifting disk 4 by rising button 2 and declines button 3, facilitates behaviour Make.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality Within novel design concept, any modification, equivalent replacement, improvement and so on should be included in the protection of the utility model Within the scope of.

Claims (8)

1. a kind of bearing-ratio test instrument includes workbench (1), the workbench (1) is equipped with lifting disk (4), the lifting Disk (4) is equipped with examination cylinder (5), it is characterised in that：It is equipped in the workbench (1) for driving lifting disk (4) to move up and down Elevating mechanism (14) further includes the control device for being useful for control elevating mechanism (14) and working, and the control device includes useful In the motor (20) for driving elevating mechanism (14), the operation key whether started for controlling motor (20).

2. a kind of bearing-ratio test instrument according to claim 1, it is characterised in that：The operation key includes for driving The rising button (2) that lifting disk (4) rises and the declines button (3) for driving lifting disk (4) to decline.

3. a kind of bearing-ratio test instrument according to claim 2, it is characterised in that：The control device includes：For Whether detection rising button (2) or declines button (3) are pressed to export the detection circuit (23) of detection signal, be coupled to detection Circuit (23) and in response to detection signal to export the control circuit (24) of control signal, be coupled to control circuit (24) and respond In control signal to control the execution circuit (25) of motor (20) positive and negative rotation；When rising button (2) is pressed, motor (20) is just Turn, and lifting disk (4) rises；When declines button (3) is pressed, motor (20) reversion, and lifting disk (4) declines.

4. a kind of bearing-ratio test instrument according to claim 3, it is characterised in that：The detection circuit (23) includes output The rise detection circuit (26) of rise detection signal and output decline the lower down detection circuit (27) of detection signal, and the rising is pressed Button (2) and the declines button (3) are inching button.

5. a kind of bearing-ratio test instrument according to claim 4, it is characterised in that：The control circuit (24) includes coupling Be connected to rise detection circuit (26) and in response to the rising circuit (29) of rising signals, be coupled to lower down detection circuit (27) and ring Should in decline detection signal decline circuit (30), the control circuit (24) include for prevent rise circuit (29) and under The protection circuit (28) that drop circuit (30) works at the same time.

6. a kind of bearing-ratio test instrument according to claim 5, it is characterised in that：The rising circuit (29) includes sound Should include to detect signal in response to declining in the rising indicating circuit (32) of rise detection signal, the decline circuit (30) Decline indicating circuit (33).

7. a kind of bearing-ratio test instrument according to claim 6, it is characterised in that：The elevating mechanism (14) includes position Rotating bar (15) in lifting disk (4) lower end is threaded with rotating disc (16), the workbench on the rotating bar (15) (1) support plate is equipped in（31）, the support plate（31）It is equipped with and is embedded in rotating disc (16) and limits rotating disc (16) water The dynamic stabilizing ring (17) of translation, interior be equipped with of the workbench (1) are moved for limiting rotating disc (16) along rotating bar (15) direction Stabilization clamp along (18), driving gear (19), the driving gear (19) and the motor are engaged with along the rotating disc (16) (20) motor shaft is fixed.

8. a kind of bearing-ratio test instrument according to claim 7, it is characterised in that：It is provided with and is located in the lifting disk (4) Cavity (21) at axle center, the cavity (21) is interior to be equipped with bearing (22), and the outer shroud and lifting disk (4) of the bearing (22) are solid Fixed, the rotating bar (15) is inserted into the cavity (21) and is fixed with the inner ring of bearing (22).