CN217552168U

CN217552168U - Electronic mechanical caliper

Info

Publication number: CN217552168U
Application number: CN202221117566.9U
Authority: CN
Inventors: 胡晨晖; 张璐; 李相彬; 韦震
Original assignee: SAIC General Motors Corp Ltd; Pan Asia Technical Automotive Center Co Ltd
Current assignee: SAIC General Motors Corp Ltd; Pan Asia Technical Automotive Center Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-10-11
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses an electronic mechanical caliper, which comprises a caliper main body, a piston block and a driving mechanism, wherein the piston block is connected to the caliper main body in a sliding way; the piston block is connected with a second caliper block which is used for being matched and clamped with the first caliper block; the driving mechanism comprises a driving motor, a lead screw piece and a lead screw nut, the driving motor is connected to the caliper main body, the lead screw piece is connected with the driving motor, and the lead screw nut is sleeved on the lead screw piece and is in threaded connection with the lead screw piece; one end of the piston block, which is far away from the first caliper, is provided with an accommodating groove with an opening facing the screw rod piece, the screw rod piece extends into the accommodating groove, and the screw rod nut is connected with the piston block in a clamping manner. This electronic machinery calliper has realized the fast reciprocating motion of second calliper through the lead screw spare of being connected with driving motor and being connected screw nut with the piston piece, so sets up, and the structure is simpler, has reduced holistic manufacturing cost.

Description

Electronic mechanical caliper

Technical Field

The utility model relates to a calliper technical field especially relates to an electronic machinery calliper.

Background

The electronic mechanical calipers are a leading-edge braking technology, a motor is used as a braking force source, and the rotation of the motor is converted into linear motion by a conversion mechanism, wherein the piston drives the calipers to move. The electronic mechanical calipers cancel a traditional hydraulic device, and the retraction of the piston is realized by a conversion mechanism. The existing conversion mechanism has a complex structure and high manufacturing cost.

In view of the above, improvements are needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a solve prior art's defect, provide a simple structure, reduce cost's electronic machinery calliper.

The technical scheme of the utility model provides an electronic machinery calliper, including calliper main part, piston block and actuating mechanism, the piston block slidable connects on the calliper main part; the piston block is connected with a second caliper block which is matched with the first caliper block; the driving mechanism comprises a driving motor, a lead screw piece and a lead screw nut, the driving motor is connected to the caliper body, the lead screw piece is connected with the driving motor, and the lead screw nut is sleeved on the lead screw piece and is in threaded connection with the lead screw piece; one end, far away from the first caliper block, of the piston block is provided with an accommodating groove with an opening facing the lead screw piece, the lead screw piece extends into the accommodating groove, and the lead screw nut is clamped with the piston block.

Further, the screw piece is a ball screw.

Furthermore, a clamping groove communicated with the accommodating groove is formed in the piston block, and the lead screw nut is located in the clamping groove.

Furthermore, a stopping wall and a stopping elastic sheet are arranged in the clamping groove, and the lead screw nut is stopped between the stopping wall and the stopping elastic sheet.

Furthermore, a groove communicated with the clamping groove is formed in the piston block, and the stopping elastic sheet is installed in the groove.

Further, the stopper wall is an inclined wall which is inclined.

Further, the piston block is detachably connected to the second caliper block by a connecting member.

Further, the connector comprises a snap tab, a snap lug disposed on the piston block and a snap slot disposed on the second caliper block; one end of the clamping sheet is clamped with the buckling lug, and the other end of the clamping sheet is clamped with the buckling groove.

Further, the snap piece is a stainless steel sheet with the thickness of 0.2 mm.

The technical scheme of the utility model provides an electronic mechanical caliper, which comprises a caliper main body, a piston block and a driving mechanism, wherein the piston block is connected to the caliper main body in a sliding way; the piston block is connected with a second caliper block which is used for being matched and clamped with the first caliper block; the driving mechanism comprises a driving motor, a lead screw piece and a lead screw nut, the driving motor is connected to the caliper main body, the lead screw piece is connected with the driving motor, and the lead screw nut is sleeved on the lead screw piece and is in threaded connection with the lead screw piece; one end of the piston block, which is far away from the first caliper, is provided with an accommodating groove with an opening facing the screw rod piece, the screw rod piece extends into the accommodating groove, and the screw rod nut is connected with the piston block in a clamping manner. This electronic machinery calliper has realized the fast reciprocating motion of second calliper through the lead screw spare of being connected with driving motor and being connected lead screw nut with the piston piece, so sets up, and the structure is simpler, has reduced holistic manufacturing cost.

Drawings

Fig. 1 is a schematic view of an electromechanical caliper according to an embodiment of the present invention;

FIG. 2 is a schematic view of a piston block and a second clamping block in an embodiment of the invention;

fig. 3 is a schematic view of a stopper spring and a groove according to an embodiment of the present invention;

FIG. 4 is a schematic view of a piston block, a second clamp block and a connector according to an embodiment of the present invention;

fig. 5 is a schematic view of a connecting member according to an embodiment of the present invention.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

It is easy to understand, according to the technical scheme of the present invention, under the spirit of the present invention, a plurality of structural modes and implementation modes which can be mutually replaced by a person of ordinary skill in the art are not changed. Therefore, the following detailed description and the accompanying drawings are only exemplary illustrations of the technical solutions of the present invention, and should not be construed as limiting or restricting the technical solutions of the present invention in its entirety or as a limitation of the present invention.

The directional terms upper, lower, left, right, front, rear, front, back, top, bottom and the like that are or may be mentioned in this specification are defined relative to the configurations shown in the drawings, and are relative concepts that may be changed accordingly depending on the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.

As shown in fig. 1-4, an electromechanical caliper 10 according to an embodiment of the present invention includes a caliper body 1, a piston block 2 and a driving mechanism 3, wherein the piston block 2 is slidably connected to the caliper body 1.

The caliper main body 1 is connected with a first caliper block 11, and the piston block 2 is connected with a second caliper block 12 which is used for being clamped by matching with the first caliper block 11.

The driving mechanism 3 comprises a driving motor 31, a lead screw piece 32 and a lead screw nut 33, the driving motor 31 is connected to the caliper body 1, the lead screw piece 32 is connected with the driving motor 31, and the lead screw nut 33 is sleeved on the lead screw piece 32 and is in threaded connection with the lead screw piece 32.

One end of the piston block 2 far away from the first caliper block 11 is provided with an accommodating groove 21 with an opening facing the screw piece 32, the screw piece 32 extends into the accommodating groove 21, and the screw nut 33 is clamped with the piston block 2.

The electro-mechanical caliper 10 is part of a vehicle brake system, which is simpler in construction and less costly to produce.

The electro-mechanical caliper 10 comprises a caliper body 1, a piston block 2 and a drive mechanism 3. The caliper body 1 is mounted on the frame, which is the caliper housing. The caliper main body 1 is provided with a mounting seat 13 extending downwards and a slide way 14 opposite to the mounting seat 13, the mounting seat 13 is connected with a first caliper block 11, one part of the piston block 2 is slidably connected in the slide way 14, and the other part of the piston block is positioned outside the slide way 14. A second clamping block 12 is attached to the portion outside the slideway 14. Actuating mechanism 3 installs on calliper main part 1, and actuating mechanism 3's output is connected with piston block 2, drives piston block 2 and slides in the slip. The piston block 2 drives the second clamping block 12 to slide when sliding, and when the second clamping block 12 moves towards the direction close to the first clamping block 11, the first clamping block 11 and the second clamping block 12 are clamped in a matched mode to achieve braking.

Optionally, the first clamping block 11 and the second clamping block 12 are both friction plates.

The drive mechanism 3 includes a drive motor 31, a lead screw member 32, and a lead screw nut 33. The drive motor 31 is fixedly mounted on the caliper body 1 on the side of the piston block 2 remote from the first caliper block 11. The motor shaft of driving motor 31 is connected with lead screw spare 32, is provided with the screw thread at the surface of lead screw spare 32, and screw nut 33 cover is on lead screw spare 32 with lead screw spare 32 threaded connection.

The piston block 2 is provided with an accommodating groove 21 with an opening facing the screw rod piece 32, a part of the screw rod piece 32 is positioned in the accommodating groove 21, and the screw rod nut 33 is clamped with the piston block 2 and is firmly kept with the piston block 2, so that the piston block 2 is driven to slide.

When the driving motor 31 rotates the lead screw member 32 in a forward direction, the lead screw member 32 rotates to move the lead screw nut 33 on the lead screw member 32 in a direction approaching the first caliper block 11. The lead screw nut 33 is firmly connected with the piston block 2, so that the lead screw nut 33 drives the piston block 2 to move towards the direction close to the first caliper block 11, so that the second caliper block 12 is matched with the first caliper block 11 to realize braking. When the drive motor 31 rotates the screw member 32 in the reverse direction, the screw member 32 moves the screw nut 33 on the screw member 32 in a direction away from the first caliper block 11. The screw nut 33 drives the piston block 2 to move away from the first clamping block 11, so that the second clamping block 12 is reset. Because the screw nut 33 is clamped with the piston block 2, the screw nut 33 can drive the piston block 2 to move at a constant speed when moving. And the screw nut 33 and the screw member 32 are simple in structure, which is favorable for reducing the production cost.

Optionally, a portion of the lead screw nut 33 is located in the receiving groove 21, and is in interference fit with the receiving groove 21 to achieve a secure connection with the piston block 2.

Optionally, a butt joint groove with an opening facing the lead screw nut 33 is formed in the piston block 2, a butt joint rod extending towards the butt joint groove is connected to the lead screw nut 33, and the butt joint rod is inserted into the butt joint groove to realize clamping connection between the lead screw nut 33 and the piston block 2.

In one embodiment, as shown in FIGS. 1-3, the screw member 32 is a ball screw. The screw member 32 includes a screw lever and a ball, a screw nut 33 is fitted over the screw lever through a nut hole, and the ball is connected between the screw lever and the wall of the nut hole. This reduces the friction force and allows the screw nut 33 to move more smoothly.

In one embodiment, as shown in fig. 1-2, the piston block 2 is provided with a locking groove 22 communicating with the receiving groove 21, and the lead screw nut 33 is located in the locking groove 22.

Specifically, the piston block 2 is further provided with a clamping groove 22, the clamping groove 22 is coaxially arranged with the accommodating groove 21, and the diameter of the clamping groove 22 is larger than that of the accommodating groove 21. When the lead screw piece 32 is installed, the lead screw piece passes through the clamping groove 22 and extends into the accommodating groove 21, and the lead screw nut 33 is clamped in the clamping groove 22. The installation is convenient, and the part of the screw nut 33 is positioned in the piston block 2 and protected by the piston block 2, so that the piston block is not easy to damage.

In one embodiment, as shown in fig. 1-3, a stop wall 23 and a stop spring 24 are disposed in the slot 22, and the lead screw nut 33 is stopped between the stop wall 23 and the stop spring 24.

Specifically, the diameter of the card slot 22 is larger than that of the receiving groove 21, so that a step surface is formed at the connection between the card slot 22 and the receiving groove 21, and the portion of the step surface located in the card slot 22 is the stop wall 23. The groove wall of the clamping groove 22 is further connected with a stopping elastic sheet 24, a clamping area is formed between the stopping elastic sheet 24 and the stopping wall 23, and the lead screw nut 33 is clamped in the clamping area. When the lead screw nut 33 is loaded, the lead screw nut 33 presses the stopper spring 24, and the stopper spring 24 deforms to provide a space for loading the lead screw nut 33. After the screw nut 33 is installed, the stopping elastic sheet 24 recovers deformation to stop the screw nut 33 from moving. When the lead screw nut 33 is to be removed, an outward drawing force is applied to the lead screw nut 33, and when the drawing force is greater than the elastic force of the stopper elastic piece 24, the stopper elastic piece 24 deforms, and the lead screw nut 33 can be drawn out. So set up, make things convenient for dismouting screw nut 33.

In one embodiment, as shown in fig. 1-3, the piston block 2 is provided with a groove 25 communicating with the slot 22, and the stop spring piece 24 is installed in the groove 25.

Specifically, a groove 25 is formed in a wall of the slot 22, and the groove 25 provides an installation area for the stopper spring 24. Part of the stopping elastic sheet 24 is positioned in the groove 25, and the other part of the stopping elastic sheet extends out of the groove 25 and is positioned in the clamping groove 22. When the lead screw nut 33 is inserted or removed, the lead screw nut 33 presses the stopper spring 24, and the stopper spring 24 is pressed and retracted into the groove 25. When the screw nut 33 is completely installed or completely removed, the stopping spring piece 24 loses the blocking of the screw nut 33 and then extends out of the groove 25 again. The groove 25 makes the stop spring piece 24 installed more firmly.

In one embodiment, as shown in fig. 1-3, the stop wall 23 is an inclined wall that is inclined. The inclined stopper wall 23 has a cushioning effect, and the lead screw nut 33 is less likely to be damaged when it is loaded.

In one embodiment, as shown in fig. 1 and 4-5, the piston block 2 is removably coupled to the second caliper block 12 by a coupling 4. The piston block 2 can be connected to and disconnected from the second caliper block 12, so that the second caliper block 12 can be replaced in time if damaged.

In one embodiment, as shown in fig. 1 and 4-5, the connector 4 includes a latch 41, a catch 42 disposed on the piston block 2, and a catch slot 43 disposed on the second caliper block 12. One end of the latch 41 is latched to the latch 42, and the other end is latched to the latch 43.

Specifically, the connecting member 4 includes a latch 41, a catch 42 and a catch groove 43, wherein the catch 42 is connected to the piston block 2, and the catch groove 43 is formed by a recess in the outer surface of the second caliper block 12. The clip sheet 41 has a first clip hook and a second clip hook, and when connecting, the first clip hook clips the clip ear 42, and the second clip hook clips the clip groove 43. The clamping sheet 41 has elasticity, and the first clamping hook and the second clamping hook are clamped more firmly under the action of the elasticity of the clamping sheet 41.

In one embodiment, as shown in FIGS. 1 and 4-5, clip 41 is a 0.2mm thick piece of stainless steel. So set up, low in production cost.

In one embodiment, a first brake pad is provided on the first caliper block 11 and a second brake pad is provided on the second caliper block 12.

To sum up, the utility model provides a pair of electronic machinery calliper 10, including calliper main part 1, piston block 2 and actuating mechanism 3, connect on calliper main part 1 piston block 2 slidable. The caliper main body 1 is connected with a first caliper block 11, and the piston block 2 is connected with a second caliper block 12 which is used for being clamped by matching with the first caliper block 11. Actuating mechanism 3 includes driving motor 31, lead screw piece 32 and screw nut 33, and driving motor 31 is connected on calliper main part 1, and lead screw piece 32 is connected with driving motor 31, and screw nut 33 cover is on lead screw piece 32, with lead screw piece 32 threaded connection. One end of the piston block 2, which is far away from the first caliper, is provided with an accommodating groove 21 with an opening facing the lead screw piece 32, the lead screw piece 32 extends into the accommodating groove 21, and the lead screw nut 33 is clamped with the piston block 2. The electronic mechanical caliper 10 realizes the fast reciprocating movement of the second caliper through the screw part 32 connected with the driving motor 31 and the screw nut 33 connected with the piston block 2, so that the structure is simpler, and the overall production cost is reduced.

According to the requirements, the above technical schemes can be combined to achieve the best technical effect.

What has been described above is merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other modifications can be made, and the protection scope of the present invention should be considered.

Claims

1. Electro-mechanical caliper, characterized by comprising a caliper body (1), a piston block (2) and a driving mechanism (3), said piston block (2) being slidably connected to said caliper body (1);

a first clamp block (11) is connected to the clamp main body (1), and a second clamp block (12) matched with the first clamp block (11) is connected to the piston block (2);

the driving mechanism (3) comprises a driving motor (31), a lead screw piece (32) and a lead screw nut (33), the driving motor (31) is connected to the caliper main body (1), the lead screw piece (32) is connected with the driving motor (31), and the lead screw nut (33) is sleeved on the lead screw piece (32) and is in threaded connection with the lead screw piece (32);

piston block (2) are kept away from the one end of first caliper block (11) is provided with the opening orientation holding tank (21) of lead screw spare (32), lead screw spare (32) stretch into in holding tank (21), lead screw nut (33) with piston block (2) joint.

2. Electro-mechanical calliper according to claim 1, wherein the screw member (32) is a ball screw.

3. Electro-mechanical calliper according to claim 1, wherein the piston block (2) is provided with a catch (22) communicating with a receiving groove (21), the lead screw nut (33) being located in the catch (22).

4. Electro-mechanical calliper according to claim 3, wherein a stop wall (23) and a stop spring (24) are provided in the slot (22), the lead screw nut (33) being stopped between the stop wall (23) and the stop spring (24).

5. Electro-mechanical calliper according to claim 4, wherein the piston block (2) is provided with a recess (25) communicating with the slot (22), the stop spring (24) being mounted in the recess (25).

6. Electro-mechanical calliper according to claim 4, wherein the stop wall (23) is an inclined wall that is inclined.

7. Electro-mechanical calliper according to claim 1, wherein the piston block (2) is removably connected to the second calliper block (12) by means of a connection (4).

8. Electro-mechanical calliper according to claim 7, wherein the connection (4) comprises a catch (41), a catch (42) provided on the piston block (2) and a catch groove (43) provided on the second calliper block (12);

one end of the clamping sheet (41) is clamped with the buckling lug (42), and the other end of the clamping sheet is clamped with the buckling groove (43).

9. Electro-mechanical calliper according to claim 8, wherein the snap tab (41) is a sheet of stainless steel 0.2mm thick.