CN216098652U - Special vertical low temperature lithium electricity intelligence fixed torque spanner of railway - Google Patents

Abstract

The utility model provides a special vertical low-temperature lithium battery intelligent constant-torque wrench for a railway, which is characterized in that a digital encoder and a controller are further arranged inside a constant-torque wrench main body, and the digital encoder is electrically connected with the controller. And the torque is regulated and controlled by adopting a digital encoder chopping frequency conversion technology. The chopper circuit of the digital encoder converts a direct-current power supply into a direct-current pulse power supply, and the frequency or the width of pulses are adjusted through the digital encoder to change the increase and decrease of an effective value of the direct-current pulse power supply, so that the purpose of accurately regulating and controlling the fixed torque of the lithium electric wrench by gears is achieved.

Description

Special vertical low temperature lithium electricity intelligence fixed torque spanner of railway

Technical Field

The utility model relates to the technical field of wrenches, in particular to a vertical type low-temperature lithium battery intelligent fixed torque wrench special for railways.

Background

The special bolt spanner for railway is a small machine for fastening the fastening bolt in line maintenance operation, and is widely applied to maintenance operations such as steel rail replacement, turnout maintenance, concrete sleeper replacement, stress dispersion, backing plate tamping and the like. The operation quality of the bolt wrench directly influences the traffic safety of railway transportation. The torque of the fastener is insufficient, so that the steel rail can creep, and the hidden safety hazards of rail expansion and track breakage in summer and winter are caused, thereby endangering the driving safety. The fastener moment of torsion is greater than the regulation scope, and the bullet strip is lain down at the bottom and is formed rigid connection with the rail, loses the damping function, and the increase vehicle wheel is to the impact force of rail, reduces rail life.

At present, the line maintenance operation generally uses an internal combustion engine as a power wrench, fuel oil as power, the bolt tightness transmission structure is complex, the failure rate is high, the maintenance is difficult, the machine tool is heavy, and the operation is inconvenient. Lithium electricity spanner uses the lithium cell as the power supply, and the brushless motor that has felt of drive, motor drive oblique planet gear indent strike piece T type head rotatory, realizes screwing up the operation to rail vertical bolt and horizontal bolt through rotatory sleeve spanner.

The prior art has the following technical problems:

1. the torque precision of the existing lithium battery torque wrench is not high, and the existing lithium battery torque wrench cannot automatically stop when reaching the buckling pressure;

2. the battery pack of the existing lithium electric wrench has small capacity, the battery capacity is greatly attenuated during low-temperature operation, the operation time is greatly reduced, and the low-temperature operation efficiency and the operation standard are reduced.

Disclosure of Invention

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a special vertical low temperature lithium electricity intelligence of railway decides torque wrench, includes: decide torque wrench main part and heating power supply, decide torque wrench main part with the heating power supply electricity is connected, its characterized in that decides the inside digital encoder that still is provided with of torque wrench main part, digital encoder with the controller electricity is connected.

Preferably, the fixed torque wrench main body further comprises a handle, a vertical rod, a shell, a controller, a motor, a bellows assembly and a sleeve; the handle is provided with a power switch, a gear switch and a speed regulating switch, and the power switch, the gear switch and the speed regulating switch are respectively and electrically connected with the controller; the motor is electrically connected with the controller; the wave box assembly is electrically connected with the controller; the motor is connected with the wave box assembly; the wave box assembly is connected with the sleeve.

Preferably, the wave box assembly is provided with a wave box tail seat, a wave box head shell, an inner gear ring, a pressure sensor, a striking block assembly and a T-shaped output shaft; the output end of the motor is connected with the input end of the inner gear ring; the output end of the inner gear ring is connected with the input end of the pressure sensor, and the output end of the pressure sensor is connected with the input end of the striking block assembly; the output end of the striking block assembly is connected with the T-shaped output shaft; the pressure sensor is electrically connected with the controller.

Preferably, power contacts are arranged on the outer portion of the fixed torque wrench main body and the outer portion of the heating power supply, the power contacts are electrically connected with the controller, the heating power supply is inserted into the fixed torque wrench main body, and the two power contacts are electrically connected.

Preferably, the heating power supply is a lithium battery power supply and comprises a power supply shell and a battery pack, and the battery pack is provided with a temperature detection module, a heating signal wire and a heating part; the temperature detection module is electrically connected with the heating module, and the heating module is electrically connected with the heating part through the heating signal wire.

Preferably, a temperature setting switch is arranged on the power supply shell, and the temperature setting switch is electrically connected with the temperature detection module.

Preferably, the battery pack is connected with a battery core, a battery core connecting sheet and a battery core bracket.

Preferably, the heating member is a carbon fiber heating sheet.

Preferably, the battery pack further comprises a shock absorption and heat preservation pad, and the shock absorption and heat preservation pad is located on the outermost side of the battery pack.

Preferably, the number of the heating power sources is at least 2.

In summary, compared with the prior art, the beneficial technical effects of the utility model are as follows: the utility model adopts the chopping frequency conversion technology of the digital encoder to regulate and control the fixed torque of the lithium electric wrench of the railway bolt. The chopper circuit of the digital encoder converts a direct-current power supply into a direct-current pulse power supply, and the frequency or the width of pulses are adjusted through the digital encoder to change the increase and decrease of an effective value of the direct-current pulse power supply, so that the purpose of accurately regulating and controlling the fixed torque of the lithium electric wrench by gears is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of the operation of the present invention;

FIG. 2 is an external structural view of the present invention;

FIG. 3 is a block diagram of the motor and bellows assembly of the present invention;

fig. 4 is a structural view of a heating power supply of the present invention.

In the figure, 1-fixed torque wrench body, 11-handle, 111-power switch, 112-gear switch, 113-speed regulation switch, 12-vertical rod, 13-shell, 14-controller, 15-motor, 16-wave box assembly, 161-wave box tailstock, 162-wave box head shell, 163-inner gear ring, 164-pressure sensor, 165-strike block assembly, 166-T output shaft, 17-sleeve, 18-digital encoder, 2-heating power supply, 21-power shell, 22-battery pack, 221-temperature detection module, 222-heating module, 223-heating signal line, 224-heating component, 225-battery core, 226-battery core connecting piece, 227-battery core support, 228-shock absorption heat preservation pad, 3-power supply contact.

The specific implementation mode is as follows:

example 1

Referring to fig. 1-4, a vertical low-temperature lithium battery intelligent constant torque wrench for railways includes: the electric heating wrench is characterized in that a digital encoder 18 and a controller 14 are further arranged inside the fixed torque wrench body 1, and the digital encoder 18 is electrically connected with the controller 14.

Preferably, the constant torque wrench body 1 further comprises a handle 11, a vertical rod 12, a housing 13, a controller 14, a motor 15, a bellows assembly 16 and a sleeve 17; the handle 11 is provided with a power switch 111, a gear switch 112 and a speed regulating switch 113, and the power switch 111, the gear switch 112 and the speed regulating switch 113 are respectively electrically connected with the controller 14; the motor 15 is electrically connected with the controller 14; the wave box assembly 16 is electrically connected with the controller 14; the motor 15 is connected with the wave box assembly 16; the bellows assembly 16 is connected to a sleeve 17.

Preferably, the bellows assembly 16 is provided with a bellows tail seat 161, a bellows head shell 162, an inner gear ring 163, a pressure sensor 164, a striking block assembly 165 and a T-shaped output shaft 166; the output end of the motor 15 is connected with the input end of the ring gear 163; the output end of the inner gear ring 163 is connected with the input end of the pressure sensor 164, and the output end of the pressure sensor 164 is connected with the input end of the striking block assembly 165; the output end of the striking block assembly 165 is connected with a T-shaped output shaft 166; the pressure sensor 164 is electrically connected to the controller 14.

Preferably, power contacts 3 are provided outside the constant torque wrench body 1 and outside the heating power supply 2, the power contacts 3 are electrically connected to the controller 14, the heating power supply 2 is inserted into the constant torque wrench body 1, and the two power contacts 3 are electrically connected.

Preferably, the heating power supply 2 is a lithium battery power supply and comprises a power supply housing 21 and a battery pack 22, wherein the battery pack 22 is provided with a temperature detection module 221, a heating module 222, a heating signal wire 223 and a heating component 224; the temperature detection module 221 is electrically connected to the heating module 222, and the heating module 222 is electrically connected to the heating member 224 through a heating signal line 223.

Preferably, the power supply housing 21 is provided with a temperature setting switch 211, and the temperature setting switch 211 is electrically connected to the temperature detection module 221.

Preferably, the battery pack 22 is connected with a battery cell 225, a battery cell connecting piece 226 and a battery cell support 227.

Preferably, the heating member 224 is a carbon fiber heating sheet.

Preferably, the battery pack further comprises a shock-absorbing and heat-insulating pad 228, and the shock-absorbing and heat-insulating pad 228 is positioned at the outermost side of the battery pack 22.

Preferably, there are at least 2 heating power sources 2.

Example 2

The working principle of the utility model is as follows:

referring to fig. 1-4, a vertical low-temperature lithium battery intelligent constant torque wrench special for railways is provided with a torque wrench body 1 supplied with electric energy by a heating power supply 2; digital encoder 18 is connected with controller 14 electricity, start gear switch 112, gear switch 112 sends the signal of telecommunication and gives controller 14, controller 14 is in transmitting the signal of telecommunication to digital encoder 18, by digital encoder 18 chopper circuit, convert DC power supply into direct current pulse power supply, and adjust the increase and decrease of frequency or the width of pulse and change the effective value of direct current pulse power supply through digital encoder 18, and then feed back to controller 14, make controller 14 control motor 15 through direct current pulse power supply, reach the effect of accurate regulation and control moment of torsion.

Preferably, the power switch 111 is used for starting power, the gear switch 112 is used for presetting torque, and the speed regulating switch 113 is used for regulating speed; the rotation speed and the torque of the motor 15 are driven and controlled by the controller 14; the bellows assembly 16 converts the pressure and the number of turns of the thread into electrical signals through the pressure sensor 164 and the striking block assembly 165 and transmits the electrical signals to the controller 14; the motor 15 drives the wave box assembly 16 to work.

Preferably, the motor 15 rotates and drives the inner gear ring 163, the pressure sensor 164, the striking block assembly 165 and the T-shaped output shaft in sequence to tighten the bolt at a set torque. The pressure sensor 164 is electrically connected to the controller 14, and the pressure sensor 164 converts the pressure signal into an electric signal and feeds the electric signal back to the controller 13.

Preferably, the heating power supply 2 is plugged into the constant torque wrench body 1, the two power contacts 3 are electrically connected, and when the heating power supply 2 is in contact with the constant torque wrench body 1 for operation, the heating power supply 2 can provide continuous and stable current.

During operation, the gear switch 112 sends a signal to the digital encoder 18 through the controller 14, the digital encoder 18 chopper circuit converts a direct-current power supply into a direct-current pulse power supply, the digital encoder 18 adjusts the frequency or the width of pulses to change the increase and decrease of the effective value of the direct-current pulse power supply, and then the effective value is fed back to the controller 14, so that the controller 14 adjusts and controls the motor 15 through the direct-current pulse power supply to achieve the effect of accurately adjusting and controlling torque; the speed regulation switch 113 sends a signal to the controller 14, the controller 14 drives the motor 15, when the bolt is screwed, the controller 14 calculates a response torque through electric signal data of the number of turns of the thread fed back by the striking block assembly 165, electric signal data of the pressure fed back by the pressure sensor 164 and electric signal data of the current, when the output reaches a preset torque, the controller 14 stops the current output to the motor 15, and the torque output by the wrench is automatically stopped.

Preferably, the heating power supply 2 is a lithium battery power supply, the temperature setting switch 211 is configured to set a temperature, when the temperature detection module 221 detects that the external environment is lower than the set temperature, the temperature detection module 221 sends an electrical signal to the heating module 222, and the heating module 222 sends the electrical signal to the heating component 224 through the heating signal line 223, so that the heating component automatically heats; when the temperature detecting module 221 detects that the temperature has reached the set temperature, the temperature detecting module 221 will send an electrical signal to the heating module 222, and the heating module 222 sends the electrical signal to the heating component 224 through the heating signal line 223, so that the heating component 224 stops heating.

Preferably, the heating member 224 is a carbon fiber heating sheet.

Preferably, the shock-absorbing insulation pad is used for maintaining the temperature of the heating power supply.

Preferably, the heating power source 2 is used at least for increasing the electric capacity and the working time.

Example 3

The specific operation flow of the utility model is as follows:

referring to fig. 1-4, the positions of the bolt and the sleeve 17 are aligned, then the power switch 111 is activated, the shift switch 112 is selected, and the speed control switch 113 is pressed to operate.

Through digital encoder 18 chopper circuit, convert DC power supply into direct current pulse power supply, adjust the increase and decrease of frequency or the width of pulse through digital encoder 18 and change the effective value of direct current pulse power supply to accurate regulation and control moment of torsion.

During the operation, gear switch 112 sends a signal to digital encoder 18 through controller 14, speed governing switch 113 sends a signal to controller 14, through controller 14 driving motor 15 and the pressure that detects pressure sensor 164, through gathering the number of turns of screw thread when the lithium electricity spanner is screwed, the trinity data of pressure and sampling operating current of pressure sensor feedback, the moment of response is calculated to controller 14, when output reaches preset nut bolt and withholding piece rated load torque, output torque can diminish to automatic stop.

When the temperature detection module 221 detects that the external environment is lower than the set temperature, the temperature detection module 221 sends the electrical signal to the heating module 222, and then the heating module 222 sends the electrical signal to the heating component 224 through the heating signal line 223, so that the heating component automatically heats; when the temperature detecting module 221 detects that the temperature has reached the set temperature, the temperature detecting module 221 will send an electrical signal to the heating module 222, and the heating module 222 sends the electrical signal to the heating component 224 through the heating signal line 223, so that the heating component 224 stops heating.

In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "rear", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily make changes or variations within the technical scope of the present invention disclosed, and such changes or variations should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (10)

1. The utility model provides a special vertical low temperature lithium electricity intelligence of railway decides torque wrench, includes: decide torque wrench main part (1) and heating power supply (2), decide torque wrench main part (1) with heating power supply (2) electricity is connected, its characterized in that, decide inside digital encoder (18) and the controller (14) of still being provided with of torque wrench main part (1), digital encoder (18) with controller (14) electricity is connected.

2. The intelligent constant-torque wrench for the vertical low-temperature lithium battery special for the railway according to claim 1, wherein the constant-torque wrench body (1) further comprises a handle (11), a vertical rod (12), a shell (13), a motor (15), a wave box assembly (16) and a sleeve (17); the handle (11) is provided with a power switch (111), a gear switch (112) and a speed regulating switch (113), and the power switch (111), the gear switch (112) and the speed regulating switch (113) are respectively electrically connected with the controller (14); the motor (15) is electrically connected with the controller (14); the wave box assembly (16) is electrically connected with the controller (14); the motor (15) is connected with the wave box assembly (16); the wave box assembly (16) is connected with the sleeve (17).

3. The intelligent constant-torque wrench with the vertical low-temperature lithium battery special for the railway as claimed in claim 2, wherein the wave box assembly (16) is provided with a wave box tailstock (161), a wave box head shell (162), an inner gear ring (163), a pressure sensor (164), a striking block assembly (165) and a T-shaped output shaft (166); the output end of the motor (15) is connected with the input end of the inner gear ring (163); the output end of the inner gear ring (163) is connected with the input end of the pressure sensor (164), and the output end of the pressure sensor (164) is connected with the input end of the striking block assembly (165); the output end of the striking block assembly (165) is connected with the T-shaped output shaft (166); the pressure sensor (164) is electrically connected to the controller (14).

4. The railway special vertical type low-temperature lithium battery intelligent constant-torque wrench as claimed in claim 1, wherein power contacts (3) are arranged outside the constant-torque wrench body (1) and outside the heating power supply (2), the power contacts (3) are electrically connected with the controller (14), the heating power supply (2) is inserted into the constant-torque wrench body (1), and the two power contacts (3) are electrically connected.

5. The intelligent constant-torque wrench with the vertical low-temperature lithium battery special for the railway according to claim 1, wherein the heating power supply (2) is a lithium battery power supply and comprises a power supply shell (21) and a battery pack (22), and a temperature detection module (221), a heating module (222), a heating signal line (223) and a heating part (224) are arranged on the battery pack (22); the temperature detection module (221) is electrically connected to the heating module (222), and the heating module (222) is electrically connected to the heating member (224) through the heating signal line (223).

6. The railway special vertical type low-temperature lithium battery intelligent torque-fixing wrench as claimed in claim 5, wherein a temperature setting switch (211) is arranged on the power supply housing (21), and the temperature setting switch (211) is electrically connected with the temperature detection module (221).

7. The intelligent constant-torque wrench for the vertical low-temperature lithium battery special for the railway according to any one of claims 5 to 6, wherein the battery pack (22) is connected with a battery cell (225), a battery cell connecting sheet (226) and a battery cell bracket (227).

8. The intelligent constant-torque wrench for the vertical low-temperature lithium battery special for the railway of claim 5, wherein the heating component (224) is a carbon fiber heating sheet.

9. The intelligent constant-torque wrench for the vertical low-temperature lithium battery special for the railway according to claim 5, further comprising a shock-absorbing and heat-insulating pad (228), wherein the shock-absorbing and heat-insulating pad (228) is located on the outermost side of the battery pack (22).

10. The intelligent constant-torque wrench for the vertical low-temperature lithium battery special for the railway according to claim 1, wherein the number of the heating power sources (2) is at least 2.

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