CN210790421U - Elastic tensioning centering device and brake shoe grinding machine thereof - Google Patents
Elastic tensioning centering device and brake shoe grinding machine thereof Download PDFInfo
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- CN210790421U CN210790421U CN201921353539.XU CN201921353539U CN210790421U CN 210790421 U CN210790421 U CN 210790421U CN 201921353539 U CN201921353539 U CN 201921353539U CN 210790421 U CN210790421 U CN 210790421U
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- vertical shaft
- brake shoe
- grinding
- pull rod
- elastic
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Abstract
The utility model relates to an elasticity rises and tightly centers device and brake shoe grinding machine thereof, including the upright axle sleeve, the inside rotation cover of upright axle sleeve is equipped with the vertical scroll, the inside slip cover of vertical scroll is equipped with the pull rod, the upper portion cover of vertical scroll is equipped with the support section of thick bamboo that is used for supporting the brake shoe, there is the tapering at the top of vertical scroll above the support section of thick bamboo, the outside movable sleeve in top of vertical scroll is equipped with rather than assorted elastic fixture, be provided with the spacing part of restriction the removal of elastic fixture on the pull rod above the elastic fixture, the bottom of pull rod rotates and is connected with the adapter sleeve; the utility model can reduce manpower, automatically fix the brake shoe in the grinding process, is suitable for line work, and improves the working efficiency; meanwhile, because the inner hole of the bottom plate of the brake shoe has certain tolerance requirements, the brake shoe can be accurately and stably fixed by expanding the elastic clamp, and the size error of the ground outer circle of the brake shoe can be reduced.
Description
Technical Field
The utility model belongs to the technical field of brake shoe outer arc grinding device, concretely relates to elasticity rises centering device and brake shoe grinding machine thereof.
Background
The brake shoe is a friction coupling of a drum brake, and should have a friction coefficient as high and stable as possible, and suitable wear resistance, heat radiation, heat capacity, and the like, in addition to strength and rigidity required as a member. The outer surface of the brake shoe needs to be ground in the production process of the brake shoe, the brake shoe needs to be clamped during grinding, and the existing manual pressing operation mode is labor-consuming and low in production efficiency, so that the brake shoe cannot be applied to flow operation.
Disclosure of Invention
To the not enough that exists among the prior art, the utility model provides a reduce the manual work, fix the brake shoe automatically, be applicable to the pipelining, promote work efficiency's elasticity tight centring means that rises.
The technical scheme of the utility model is that: the elastic tensioning centering device comprises a vertical shaft sleeve, a vertical shaft is rotatably sleeved inside the vertical shaft sleeve, a pull rod is slidably sleeved inside the vertical shaft, a supporting cylinder used for supporting a brake shoe is sleeved on the upper portion of the vertical shaft, the top end of the vertical shaft above the supporting cylinder is provided with a taper, an elastic clamp matched with the elastic clamp is movably sleeved outside the top end of the vertical shaft, a limiting component used for limiting the elastic clamp to move is arranged on the pull rod above the elastic clamp, and a connecting sleeve is rotatably connected to the bottom end of the pull rod.
The vertical shaft sleeve is characterized in that the upper end of the vertical shaft sleeve is sealed through an ash blocking cover, the lower end of the vertical shaft sleeve is sealed through a bearing cover, the interior of the vertical shaft sleeve is rotatably connected with the vertical shaft through a bearing group, and oil seals are arranged outside the ash blocking cover and the vertical shaft inside the bearing cover.
The elastic clamp is provided with a clamping barrel with a reducing pipe body structure, strip-shaped openings which are axially arranged are uniformly distributed on the lower portion of the clamping barrel around the side wall of the clamping barrel, and clamping pieces which are integrated with the bottom of the clamping barrel are arranged between every two adjacent strip-shaped openings.
The limiting part is a bolt sleeved outside the pull rod, and a gasket is arranged between the bolt and the elastic clamp.
The connecting sleeve is of a cylindrical cavity structure with an open top, the bottom end of the pull rod is provided with a clamping ring matched with the inside of the connecting sleeve, the clamping ring is rotatably arranged inside the connecting sleeve, and the top of the connecting sleeve is sealed through a gland.
The connecting sleeve is internally provided with a thrust bearing which is rotationally connected with the pull rod, and a nylon gasket is arranged between the thrust bearing and the gland.
The brake shoe grinding machine comprises the elastic tensioning centering device and a rack, wherein the vertical shaft sleeve is vertically and fixedly arranged on the rack, a vertical grinding head and a horizontal grinding head for grinding a brake shoe are arranged at the top of the rack, and a telescopic driving mechanism for pulling the connecting sleeve and a rotary driving mechanism for driving the vertical shaft to rotate are arranged in the rack.
The outer portion of the horizontal grinding cutter disc of the vertical grinding head is sleeved with a first dust cover, the outer portion of the vertical grinding cutter disc of the horizontal grinding head is sleeved with a second dust cover, and grinding openings are formed in one sides, close to the elastic tensioning centering device, of the first dust cover and the second dust cover.
And protection plates for opening or shielding the grinding openings are arranged above the grinding openings of the first dust cover and the second dust cover and are driven by a moving mechanism.
And the first dust cover and the second dust cover are both provided with dust exhaust pipes.
The utility model has the advantages that: the utility model can reduce manpower, automatically fix the brake shoe in the grinding process, is suitable for line work, and improves the working efficiency; meanwhile, because the inner hole of the bottom plate of the brake shoe has certain tolerance requirements, the brake shoe can be accurately and stably fixed by expanding the elastic clamp, and the size error of the ground outer circle of the brake shoe can be reduced; the brake shoe grinding machine based on the device is suitable for flow operation, and improves the working efficiency.
Drawings
Fig. 1 is a schematic view of the internal structure of the elastic tension centering device.
Fig. 2 is an external structural schematic diagram of the elastic tensioning centering device.
Fig. 3 is an external structural view of the brake shoe grinding machine.
Detailed Description
The following describes the embodiments of the present invention with reference to the drawings and examples.
The elastic tensioning centering device shown in fig. 1 and 2 comprises a vertical shaft sleeve 6, wherein a vertical shaft 5 is rotatably sleeved in the vertical shaft sleeve 6, a pull rod 1 is slidably sleeved in the vertical shaft 5, a supporting cylinder 2 for supporting a bottom plate of a brake shoe 20 is sleeved at the upper part of the vertical shaft 5, the top end of the vertical shaft 5 above the supporting cylinder 2 has taper, an elastic clamp 3 matched with the vertical shaft 5 is movably sleeved outside the top end of the vertical shaft 5, a limiting component for limiting the movement of the elastic clamp 3 is arranged on the pull rod 1 above the elastic clamp 3, a connecting sleeve 13 is rotatably connected at the bottom end of the pull rod 1, and the limiting component of the pull rod 1 presses the elastic clamp 3 to expand to fix an inner hole at the bottom of; the embodiment is applied to a brake shoe outer arc grinding device and used for fixing a brake shoe 20, when the device is specifically implemented, a flange plate is arranged on the outer portion of the top end of a vertical shaft sleeve 6 and fixed on a rack of the brake shoe outer arc grinding device through a bolt, the brake shoe 20 to be ground is placed in the middle of the top of a support cylinder 2, the brake shoe 20 is supported by the support cylinder 2, a connecting sleeve 13 is pulled downwards to drive a pull rod 1 to move downwards, a limiting component at the top end of the pull rod 1 presses down an elastic clamp 3, the lower portion of the elastic clamp 3 expands outwards through the guiding effect of the taper at the top end of a vertical shaft 5, the elastic clamp 3 expands outwards and then is tightly fixed with an inner hole of a bottom plate of the brake shoe 20, the vertical shaft 5 is driven to rotate through an external driving structure, and the periphery of the brake shoe 20 is ground through; after grinding is finished, the pull rod 1 lifts the elastic clamp 3 upwards to recover elastic deformation, the elastic clamp 3 is separated from the inner hole of the bottom plate of the brake shoe 20, and the ground brake shoe 20 can be taken down.
In order to prevent dust particles generated in the grinding process from entering the vertical shaft sleeve 6 to influence the rotation of the vertical shaft sleeve 6, the upper end of the vertical shaft sleeve 6 is sealed through an ash blocking cover 7, the periphery of the ash blocking cover 7 is fixed on the top of the vertical shaft sleeve 6 through bolts, the lower end of the vertical shaft sleeve 6 is sealed through a bearing cover 16, the interior of the vertical shaft sleeve 6 is rotatably connected with a vertical shaft 5 through a bearing set, specifically, as shown in figure 1, the bearing set comprises a ball bearing 8 and a conical rolling bearing 9 which are arranged on the upper portion of a deep groove in the vertical shaft sleeve 6, and a conical rolling bearing 9 arranged on the lower portion in the vertical shaft sleeve 6, lubricating oil is filled in the vertical shaft sleeve 6, oil seals 15 are arranged outside vertical shafts in the ash blocking cover 7 and the bearing cover 16, and.
As shown in figure 2, the elastic clamp 3 is made of spring steel and has good elastic rendering capability, the elastic clamp 3 is provided with a clamping cylinder 31 with a reducing pipe body structure, one end with larger inner diameter of the clamping cylinder 31 is downwards sleeved at the top end of the vertical shaft 5, strip-shaped openings 33 which are arranged along the axial direction of the clamping cylinder 31 are uniformly distributed at the lower part of the clamping cylinder 31 around the side wall of the clamping cylinder, clamping pieces 32 which are integrated with the bottom of the clamping cylinder are arranged between two adjacent strip-shaped openings, a limiting part presses the elastic clamp 3 downwards, the elastic clamp 3 moves downwards, the lower part of the clamping cylinder 31 can expand outwards under the guiding action of the conical end of the vertical shaft 5, the clamping pieces 32 are expanded outwards along with the lower end of the clamping cylinder 31 and are fixed with the inner hole of the bottom plate of the brake shoe 20, the limiting part rises and recovers, the elastic clamp 3 recovers to deform, the clamping cylinder 31 moves upwards under the guiding action of the conical end of the, the clamping pieces 32 are separated from the inner holes of the bottom plates of the brake shoes 20, so that the brake shoes 20 can be removed from the elastic clamp 3.
As shown in fig. 1, the limiting component is a bolt 4 sleeved outside the pull rod 1, an external thread is arranged at the top of the pull rod 1, the bolt 4 is in threaded connection with the top end of the pull rod 1 in a matching manner, the position of the bolt 4 relative to the pull rod 1 can be adjusted up and down, the stroke of the bolt 4 for pressing the elastic clamp 3 can be changed, namely, the diameter of the expanded elastic clamp 3 is finely adjusted, so that the elastic clamp is more adaptive to an inner hole of a bottom plate of a brake shoe 20, a gasket 17 is arranged between the bolt 4 and the elastic clamp 3, the stress area at the top of the elastic clamp 3 is increased through the gasket 17, and the top pressure loss of the elastic clamp.
The connecting sleeve 13 is of a cylindrical cavity structure with an open top, a snap ring 14 matched with the inside of the connecting sleeve 13 is arranged at the bottom end of the pull rod 1, the snap ring 14 and the pull rod 1 are of an integral structure, the snap ring 14 is rotatably arranged inside the connecting sleeve 13, the top of the connecting sleeve 13 is sealed through a gland 12, a thrust bearing 11 is arranged inside the connecting sleeve 13 and is rotatably connected with the pull rod 1, a nylon gasket 18 is arranged between the thrust bearing 11 and the gland 12, the pull rod 1 can rotate relative to the connecting sleeve 13 through the thrust bearing 11, after the pull rod 1 is pulled down through the connecting sleeve 13, the pull rod 1 can rotate along with the vertical shaft 5 to grind the outside of the brake shoe 20, the pull rod 1 is rotatably connected with the connecting sleeve 13 through the thrust bearing 11, the connecting sleeve 13 cannot influence the rotation of the pull rod 1, and as.
The gear 10 is sleeved on the outer side of the bottom end of the vertical shaft 5, the vertical shaft 5 can be driven to rotate by meshing the gear 10 with an external driving gear, the periphery of the brake shoe 20 is ground by a grinding wheel in grinding equipment, and the external driving gear can be driven by a speed reduction motor.
Based on the elastic tensioning centering device, the embodiment also relates to a brake shoe grinding machine which is suitable for flow operation and improves the working efficiency, as shown in fig. 3, the brake shoe grinding machine comprises the elastic tensioning centering device and a frame 40, a vertical shaft sleeve 6 is vertically and fixedly arranged on the frame 40, a vertical grinding head 50 and a horizontal grinding head 60 for grinding a brake shoe 20 are arranged at the top of the frame 40, and a telescopic driving mechanism for pulling a connecting sleeve 13 and a rotary driving mechanism for driving a vertical shaft to rotate are arranged inside the frame 40; the specific structure of the vertical grinding head 50, the horizontal grinding head 60, the telescopic driving mechanism and the rotary driving mechanism is disclosed in the chinese utility model patent with the application number CN201420727422.4, wherein the vertical grinding head 50 is changed from the horizontal grinding cutter head installation downwards to the horizontal grinding cutter head installation upwards, and the technical personnel in the field can realize the vertical grinding head without creative labor.
In addition, a first dust cover 51 is sleeved outside a horizontal grinding cutter disc of the vertical grinding head 50, a second dust cover 61 is sleeved outside a vertical grinding cutter disc of the horizontal grinding head 60, grinding openings 62 are formed in the sides, close to the elastic tensioning centering device, of the first dust cover 51 and the second dust cover 61, the brake shoes 20 are in contact with the horizontal grinding cutter disc or the vertical grinding cutter disc through the grinding openings 62 for grinding, powder generated in the grinding process is collected by the dust covers 61, in order to facilitate timely discharging of dust inside the dust covers 61, dust discharge pipes 63 are arranged on the first dust cover 51 and the second dust cover 61, the dust discharge pipes 63 are connected with a dust removal device, and the dust is timely drawn out from the insides of the first dust cover 51 and the second dust cover 61 to avoid accumulation. The protection plates 64 used for opening or shielding the grinding openings are arranged above the grinding openings 62 of the first dust cover 51 and the second dust cover 61 respectively, the protection plates 64 are driven by the moving mechanism, as an embodiment, the protection plates 64 are matched with the grinding openings 62 in shape and size, the moving mechanism comprises an L-shaped support, an air cylinder is arranged on the L-shaped support, a piston rod of the air cylinder is vertically arranged downwards, the end part of the piston rod is fixedly connected with the protection plates 64, the moving mechanism is arranged above the grinding openings 62 of the first dust cover 51 and the second dust cover 61 respectively and drives the grinding openings 62, the L-shaped support is fixedly arranged above the grinding openings 62 of the first dust cover 51 and the second dust cover 61, the piston rod of the air cylinder extends out, the protection plates 64 descend to shield the grinding openings 62, horizontal grinding cutter discs or vertical grinding cutter discs are protected, the piston rods of the air cylinders retract, the protection, the brake shoe 20 can enter from the grinding opening 62 for grinding.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The elastic tensioning centering device is characterized by comprising a vertical shaft sleeve, wherein a vertical shaft is rotatably sleeved inside the vertical shaft sleeve, a pull rod is slidably sleeved inside the vertical shaft, a supporting cylinder for supporting a brake shoe is sleeved on the upper portion of the vertical shaft, the top end of the vertical shaft above the supporting cylinder has a taper, an elastic clamp matched with the vertical shaft is movably sleeved outside the top end of the vertical shaft, a limiting component for limiting the elastic clamp to move is arranged on the pull rod above the elastic clamp, and a connecting sleeve is rotatably connected to the bottom end of the pull rod.
2. The elastic tension centering device of claim 1, wherein: the vertical shaft sleeve is characterized in that the upper end of the vertical shaft sleeve is sealed through an ash blocking cover, the lower end of the vertical shaft sleeve is sealed through a bearing cover, the interior of the vertical shaft sleeve is rotatably connected with the vertical shaft through a bearing group, and oil seals are arranged outside the ash blocking cover and the vertical shaft inside the bearing cover.
3. The elastic tension centering device of claim 1, wherein: the elastic clamp is provided with a clamping barrel with a reducing pipe body structure, strip-shaped openings which are axially arranged are uniformly distributed on the lower portion of the clamping barrel around the side wall of the clamping barrel, and clamping pieces which are integrated with the bottom of the clamping barrel are arranged between every two adjacent strip-shaped openings.
4. The elastic tension centering device of claim 1, wherein: the limiting part is a bolt sleeved outside the pull rod, and a gasket is arranged between the bolt and the elastic clamp.
5. The elastic tension centering device of claim 1, wherein: the connecting sleeve is of a cylindrical cavity structure with an open top, the bottom end of the pull rod is provided with a clamping ring matched with the inside of the connecting sleeve, the clamping ring is rotatably arranged inside the connecting sleeve, and the top of the connecting sleeve is sealed through a gland.
6. The elastic tension centering device of claim 5, wherein: the connecting sleeve is internally provided with a thrust bearing which is rotationally connected with the pull rod, and a nylon gasket is arranged between the thrust bearing and the gland.
7. A brake shoe grinding machine is characterized in that: the elastic tension centering device comprises the elastic tension centering device and a frame as claimed in any one of claims 1 to 6, wherein the vertical shaft sleeve is vertically and fixedly arranged on the frame, a vertical grinding head and a horizontal grinding head for grinding a brake shoe are arranged at the top of the frame, and a telescopic driving mechanism for pulling the connecting sleeve and a rotary driving mechanism for driving the vertical shaft to rotate are arranged in the frame.
8. The brake shoe grinding machine of claim 7, wherein: the outer portion of the horizontal grinding cutter disc of the vertical grinding head is sleeved with a first dust cover, the outer portion of the vertical grinding cutter disc of the horizontal grinding head is sleeved with a second dust cover, and grinding openings are formed in one sides, close to the elastic tensioning centering device, of the first dust cover and the second dust cover.
9. The brake shoe grinder of claim 8, wherein: and protection plates for opening or shielding the grinding openings are arranged above the grinding openings of the first dust cover and the second dust cover and are driven by a moving mechanism.
10. The brake shoe grinder of claim 8, wherein: and the first dust cover and the second dust cover are both provided with dust exhaust pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921353539.XU CN210790421U (en) | 2019-08-20 | 2019-08-20 | Elastic tensioning centering device and brake shoe grinding machine thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921353539.XU CN210790421U (en) | 2019-08-20 | 2019-08-20 | Elastic tensioning centering device and brake shoe grinding machine thereof |
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| Publication Number | Publication Date |
|---|---|
| CN210790421U true CN210790421U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921353539.XU Active CN210790421U (en) | 2019-08-20 | 2019-08-20 | Elastic tensioning centering device and brake shoe grinding machine thereof |
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| CN (1) | CN210790421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115446710A (en) * | 2022-08-15 | 2022-12-09 | 无锡市明鑫数控磨床有限公司 | Intelligent vertical grinding machine with vertical interlocking protection function |
-
2019
- 2019-08-20 CN CN201921353539.XU patent/CN210790421U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115446710A (en) * | 2022-08-15 | 2022-12-09 | 无锡市明鑫数控磨床有限公司 | Intelligent vertical grinding machine with vertical interlocking protection function |
| CN115446710B (en) * | 2022-08-15 | 2023-07-18 | 无锡市明鑫数控磨床有限公司 | Intelligent vertical grinding machine with vertical interlocking protection function |
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