CN209717299U - Cylindrical surface sand belt tensioning apparatus - Google Patents
Cylindrical surface sand belt tensioning apparatus Download PDFInfo
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- CN209717299U CN209717299U CN201920421988.7U CN201920421988U CN209717299U CN 209717299 U CN209717299 U CN 209717299U CN 201920421988 U CN201920421988 U CN 201920421988U CN 209717299 U CN209717299 U CN 209717299U
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Abstract
The utility model relates to cylindrical body polishing technology fields, two pieces of support plates of the utility model being vertically fixed on mobile platform in correspondence with each other, push-pull arm locking device is equipped with by upper sliding bar between two support plates, two push-pull arms on torque arm locking device can arcuately slotted hole slide, to drive belt pulley to rise or fall, when two push-pull arms drop to the lower end of arc slotted hole, the block board of two push-pull arm lower ends connection can snap onto the downslide lever of lower section, by torque arm locking device and lower slider rod lock, the fixed hook of the oval bore ends setting of arc at this time hooks sliding bar, it avoids sliding backward torque arm locking device, to which sand belt tension assembly is fully locked；Slide bar between downslide lever and supporting block is under the support of spring, when two push-pull arm upward sliding block boards and downslide moving axis separate, downward elastic force can be provided to be pressed downward downslide lever, avoid belt when two push-pull arm upward slidings on belt pulley from loosening and fall off phenomenon.
Description
Technical field
The utility model relates to cylindrical body polishing technology fields more particularly to a kind of cylindrical surface sand belt to be tensioned
Device.
Background technique
The polishing of cylindrical work occupies very big ratio in polishing field, mostly uses people greatly for cylindrical work at present
Work polishing or automatic polishing, artificial polishing are polished by hand-held polishing machine, or directly hold with a hand polishing sand paper progress
Polishing, large labor intensity is inefficient, and automatic polishing is that cylindrical work is fixed and be can be rotated mostly, then fills polishing
The side fixed to cylindrical work is set, sand belt and Cylindrical Surfaces Contact are polished, but this polissoir is being thrown
The installation of light cylindrical work and when removing, needs sand belt to pack up backward, is all by two fast pulleys in the prior art
Sand belt is supported with a castor, needs castor mobile during packing up sand belt, will cause sand belt in this way
It can loosen, when tensioning again is in use, position of the sand belt on wheel can shift, be also easy to falling off for sand belt occurs to ask
Topic, the subsequent position for needing to adjust sand belt, operating process trouble influence the working efficiency of polissoir.
Utility model content
To solve the above-mentioned problems, the content of the present invention proposes a kind of cylindrical surface sand belt tensioning apparatus.
The technical solution of the content of the present invention is: a kind of cylindrical surface sand belt tensioning apparatus, including movement
Platform, sand belt tension assembly, it is characterised in that: the mobile platform is one block of cuboid plate, on the side of mobile platform
Surface is fixed with driving motor, and belt pulley first is connected on the axis of driving motor；
The sand belt tension assembly include two pieces of identical support plates, push-pull arm locking device, sand belt, described two
Sand belt tension assembly is connect by the other side for being vertically fixed on mobile platform of block support plate in correspondence with each other with mobile platform, and two
Certain intervals are equipped between block support plate, the support plate is integrally triangular in shape, and central fixed shaft is provided in the middle part of support plate
Hole is provided with arc slotted hole at the outside corner of support plate centered on central fixed shaft hole, and the edge of inside is provided with bearing
Mounting hole, the edge of lower section are provided with vertical slotted hole；Lower sidewall between two support plates is respectively connected with a branch
Bracer, the position of two supporting blocks in correspondence with each other and are all located at the surface of vertical slotted hole, and the middle part of two supporting blocks is respectively provided with one
A round lift span；
The push-pull arm locking device is mounted between two support plates, and push-pull arm locking device, which includes two, identical to be pushed away
Torque arm, the push-pull arm are one block of elongated plate, and the middle part of push-pull arm is equipped with circle mounting hole, and the lower part of two push-pull arms is equipped with circle
Hole is fixedly connected with casing between two circular holes and two push-pull arms is fixed to integral, the internal diameter of the casing and the diameter of circular hole side by side
It is identical, the block board extended downwardly is fixed in the middle part of described sleeve pipe, the lower part of the block board is provided with using cannula center as the center of circle
Arc-shaped slot, cut with introduction bevel at the port of arc-shaped slot；
Shaft, wherein one end of shaft are equipped with by bearing in corresponding two bearings mounting hole in two support plates
The support plate of corresponding side is stretched out, belt pulley second corresponding with belt pulley first, belt are installed in the shaft between two support plates
V-shape belt is set between wheel first and belt pulley second；Downslide moving axis, lower slider are installed in two vertical slotted holes in correspondence with each other
The support plate of corresponding side is stretched out in wherein one end of axis, and the middle part of downslide moving axis is stretched out upwards there are two slide bar, and two slide bars pass through
Two circle lift spans of above-mentioned supporting block form sliding pair, are set with bullet on two slide bars between the supporting block and downslide moving axis
Spring；Sliding axle is installed in two arc slotted holes in correspondence with each other and forms sliding pair, wherein one end stretching pair of upper sliding axle
The support plate of side is answered, the circle mounting hole in the middle part of above-mentioned two push-pull arm is passed through in the middle part of the upper sliding axle and fixes company with push-pull arm
It connects, the central fixed shaft hole on the both ends of casing and the support plate of two sides of two push-pull arm lower parts is corresponding, central fixed shaft hole
Diameter is identical with the internal diameter of casing, forms revolute pair inserted with central fixed shaft in central fixed shaft hole and casing；
The part that the shaft, downslide moving axis, upper sliding axle stretch out support plate is located at the same side of support plate, shaft,
Polishing belt wheel is socketed on downslide moving axis, upper sliding axle, the sand belt is sleeved on three polishing belt wheels, the support
The both ends of arc slotted hole between plate and polishing belt wheel are equipped with articulated joint, are hinged in each articulated joint and upper sliding axle
The fixed hook matched.
Preferably, two upper ends of two push-pull arms are connected with holding rod, are set with turning set on the holding rod.
Preferably, the diameter for the polishing belt wheel being socketed on the downslide moving axis and upper sliding axle is identical, is socketed in shaft
The diameter of polishing belt wheel be greater than the diameter of the polishing belt wheel being socketed on downslide moving axis and upper sliding axle.
Preferably, the length that the shaft, downslide moving axis, upper sliding axle stretch out the part of support plate is greater than polishing belt wheel
Length.
Preferably, the size of the arc slotted hole and the matching of the size of upper sliding axle, the size and circle of telescopic rod rise
The size matching in hole is dropped.
The advantageous effects of the content of the present invention are:
Two pieces of support plates of the utility model being vertically fixed on mobile platform in correspondence with each other, passes through between two support plates
Upper sliding bar is equipped with push-pull arm locking device, and two push-pull arms on torque arm locking device can arcuately slotted hole slide, thus
Belt pulley is driven to rise or fall, when the lower end that two push-pull arms drop to arc slotted hole drives sand belt and round piece contact
When starting polishing, the block board of two push-pull arm lower ends connection can be snapped onto the downslide lever of lower section, by torque arm locking device and
The fixed hook of lower slider rod lock, the at this time oval bore ends setting of arc hooks sliding bar, avoids torque arm locking device
It slides backward, so that sand belt tension assembly is fully locked；The support of slide bar between downslide lever and supporting block in spring
Under, when two push-pull arm upward sliding block boards and downslide moving axis separate, downward elastic force can be provided and be pressed downward downslide lever,
To drive the belt pulley of lower section to be pressed downward, avoids belt when two push-pull arm upward slidings on belt pulley from loosening and fall off now
As.
Detailed description of the invention
Fig. 1 is one of schematic perspective view of the utility model；
Fig. 2 is the structural schematic diagram of support plate in Fig. 1；
Fig. 3 is the two of the schematic perspective view of the utility model；
Fig. 4 is the three of the schematic perspective view of the utility model；
Fig. 5 is the partial enlarged view of Fig. 4；
Fig. 6 is the schematic perspective view of one support plate of removal of the utility model；
Fig. 7 is the partial enlarged view of Fig. 6；
Fig. 8 is the schematic diagram of push-pull arm locking device；
Fig. 9 is the side view of push-pull arm locking device；
Figure 10 is the sectional view along A-A of Fig. 9；
Figure 11 is the overlooking structure diagram of the utility model；
Figure 12 is the partial enlarged view of Figure 11；
In figure, 1. mobile platforms, 101. driving motors, 102. belt pulley first, 2. support plates, 201. arc slotted holes,
202. bearing mounting holes, 203. vertical slotted holes, 204, central fixed shaft holes, 205. supporting blocks, 206. circle lift spans, 3. push away
Torque arm locking device, 301. push-pull arms, 302. circle mounting holes, 303. block boards, 304. arc-shaped slots, 305. introduction bevels,
306. casings, 307. circular holes, 4. shafts, 401. belt pulley second, 5.V type belt, 6. downslide moving axis, 601. slide bars, 7. springs, 8.
Upper sliding axle, 9. articulated joints, 10. fixed hooks, 11. polishing belt wheels, 12. sand belts, 13. holding rods, 14. central fixed shafts,
15. turning set.
Specific embodiment
Embodiment one, referring to Figure of description (1-12), a kind of cylindrical surface sand belt tensioning apparatus, including
Mobile platform, sand belt tension assembly, the mobile platform are one block of cuboid plate, and the side upper surface of mobile platform is fixed
There is driving motor, belt pulley first is connected on the axis of driving motor；
The sand belt tension assembly include two pieces of identical support plates, push-pull arm locking device, sand belt, described two
Sand belt tension assembly is connect by the other side for being vertically fixed on mobile platform of block support plate in correspondence with each other with mobile platform, and two
It is equipped with certain intervals between block support plate, is used to that locking device is installed in the interval, the support plate is integrally triangular in shape, branch
It is provided with central fixed shaft hole in the middle part of fagging, it is oval to be provided with arc centered on central fixed shaft hole at the outside corner of support plate
Hole, the edge of inside are provided with bearing mounting hole, and the edge of lower section is provided with vertical slotted hole；Between two support plates
Lower sidewall is respectively connected with a supporting block, and the position of two supporting blocks in correspondence with each other and is all located at the surface of vertical slotted hole,
The middle part of two supporting blocks is respectively provided with a round lift span；
The push-pull arm locking device is mounted between two support plates, and push-pull arm locking device, which includes two, identical to be pushed away
Torque arm, the push-pull arm are one block of elongated plate, and the middle part of push-pull arm is equipped with circle mounting hole, and the lower part of two push-pull arms is equipped with circle
Hole is fixedly connected with casing between two circular holes and two push-pull arms is fixed to integral, the internal diameter of the casing and the diameter of circular hole side by side
It is identical, it is fixed in the middle part of described sleeve pipe and extends downwardly block board, the lower part of the block board is provided with using cannula center as the center of circle
Arc-shaped slot, when block board is rotated close to downslide moving axis, arc-shaped slot can be snapped on downslide moving axis, by block board and lower slider
Axis is fixed, and introduction bevel is cut at the port of arc-shaped slot, and introduction bevel increases the range that downslide lever imports arc-shaped slot,
Prevent the case where downslide lever can not import arc-shaped slot；
Shaft, wherein one end of shaft are equipped with by bearing in corresponding two bearings mounting hole in two support plates
The support plate of corresponding side is stretched out, belt pulley second corresponding with belt pulley first, belt are installed in the shaft between two support plates
V-shape belt is set between wheel first and belt pulley second；Downslide moving axis, lower slider are installed in two vertical slotted holes in correspondence with each other
The support plate of corresponding side is stretched out in wherein one end of axis, and the middle part of downslide moving axis is stretched out upwards there are two slide bar, and two slide bars pass through
Two circle lift spans of above-mentioned supporting block form sliding pair, are set with bullet on two slide bars between the supporting block and downslide moving axis
Spring, the spring are used to press downwards sliding bar；Sliding axle is installed in two arc slotted holes in correspondence with each other and forms sliding pair,
The support plate of corresponding side is stretched out in wherein one end of upper sliding axle, passes through in the middle part of above-mentioned two push-pull arm in the middle part of the upper sliding axle
Circle mounting hole is simultaneously fixedly connected with push-pull arm, intermediate fixed on the both ends of casing and the support plate of two sides of two push-pull arm lower parts
Axis hole is corresponding, and the diameter in central fixed shaft hole and the internal diameter of casing are identical, solid inserted with centre in central fixed shaft hole and casing
Dead axle forms revolute pair；
The part that the shaft, downslide moving axis, upper sliding axle stretch out support plate is located at the same side of support plate, shaft,
Polishing belt wheel is socketed on downslide moving axis, upper sliding axle, the sand belt is sleeved on three polishing belt wheels, three polishings
Belt wheel drives sand belt to rotate, and the both ends of the arc slotted hole between the support plate and polishing belt wheel are equipped with articulated joint,
It is hinged in each articulated joint and the matched fixed hook of upper sliding axle, the fixed hook is used to fix upper in arc slotted hole
Sliding axle.
Two upper ends of two push-pull arms are connected with holding rod, are set with turning set on the holding rod, hold with a hand
Firmly holding rod operates push-pull arm locking device.
The diameter for the polishing belt wheel being socketed on the downslide moving axis and upper sliding axle is identical, the sand belt being socketed in shaft
The diameter of wheel is greater than the diameter for the polishing belt wheel being socketed on downslide moving axis and upper sliding axle, and the sand belt wheel in shaft is as driving
Wheel, in the identical situation of motor output power, driving wheel diameter is bigger, and transmission ratio between three driving wheels is higher described
The length that shaft, downslide moving axis, upper sliding axle stretch out the part of support plate is greater than the length of polishing belt wheel, to guarantee to polish belt wheel
It can be sleeved on completely on axis.
The size of the arc slotted hole and the size matching of upper sliding axle, the size of telescopic rod and the ruler of circle lift span
Very little matching, size matching can make the smooth sliding of sliding pair, prevent loosening, shakiness.
The operating method of the utility model are as follows:
When the sand belt that needs to extrapolate sticks on the cylindrical work being polished:
A. the holding rod for holding two push-pull arm upper ends presses down on, and the casing of two push-pull arm lower ends is in middle part at this time
Between centered on fixing axle, the upper sliding bar in the middle part of push-pull arm is along arc slotted hole slide downward, the card of two push-pull arm lower ends
Position plate also starts to rotate down constantly close to downslide moving axis；
B. the arc-shaped slot of block board is after downslide moving axis, if the arc-shaped slot of lower section and downslide moving axis do not correspond to, this
When arc-shaped slot port introduction bevel contacted with downslide moving axis, downslide moving axis is upward along introduction bevel under the action of slide bar
Or lower slider axis is imported into arc-shaped slot by slide downward；Realize downslide moving axis vertical positioning, in this way go up sliding bar after
It is continuous to be moved outward until sand belt is tensioned by rigidity and sticks the cylindrical work being polished；
C. continue to press down on two push-pull arms, until upper sliding bar slides into the innermost end of arc slotted hole, then arc of rotation
Fixed hook is hooked upper sliding axle by the fixed hook of shape slotted hole corresponding end, and the extrapolation for completing sand belt, which is sticked, is polished circle
Cylindrical workpiece；
When being pushed away in needs on the cylindrical work that sand belt disengaging is polished:
A. fixed hook and upper sliding axle are detached from, then grip holding rod and pushes up, at this time two push-pull arm lower ends
Casing is centered on the central fixed shaft at middle part, and the upper sliding bar in the middle part of push-pull arm is along arc slotted hole upward sliding, detent
Plate is turned out, while covering the spring downward downslide lever on slide bar, and the polishing belt wheel in downslide lever is pressed downward sand belt,
The sand belt on three polishing belt wheels is set to be constantly in flexible tension state, tensile force at this time is for avoiding sand belt certainly
Relaxation and offset from polishing wheel；
B. when block board is turned out, arc-shaped slot and downslide moving axis are detached from, and continue up that shift push-pull arm onto arc long
Then the upper end of circular hole rotates the fixed hook of arc slotted hole corresponding end, fixed hook is hooked upper sliding axle, completes to throw
Light belt tensioning apparatus is fixed in the upper end of arc slotted hole, and sand belt is far from the cylindrical work being polished in this process
Process, removing and installing bigger operating space is provided to cylindrical work.
Claims (5)
1. a kind of cylindrical surface sand belt tensioning apparatus, including mobile platform, sand belt tension assembly, feature exist
In: the mobile platform is one block of cuboid plate, and the side upper surface of mobile platform is fixed with driving motor, driving motor
Belt pulley first is connected on axis；
The sand belt tension assembly includes two pieces of identical support plates, push-pull arm locking device, sand belt, two pieces of branch
Sand belt tension assembly is connect by the other side for being vertically fixed on mobile platform of fagging in correspondence with each other with mobile platform, two pieces of branch
Certain intervals are equipped between fagging, the support plate is integrally triangular in shape, and central fixed shaft hole is provided in the middle part of support plate, props up
Arc slotted hole is provided at the outside corner of fagging centered on central fixed shaft hole, the edge of inside is provided with bearing installation
Hole, the edge of lower section are provided with vertical slotted hole；Lower sidewall between two support plates is respectively connected with a supporting block,
The position of two supporting blocks in correspondence with each other and is all located at the surface of vertical slotted hole, and the middle part of two supporting blocks is respectively provided with a circle and rises
Hole drops；
The push-pull arm locking device is mounted between two support plates, and push-pull arm locking device includes two identical push-and-pulls
Arm, the push-pull arm are one block of elongated plate, and the middle part of push-pull arm is equipped with circle mounting hole, and the lower part of two push-pull arms is equipped with circular hole,
It is fixedly connected with casing between two circular holes, two push-pull arms are fixed to integral, the internal diameter of the casing and the diameter phase of circular hole side by side
Together, the block board extended downwardly is fixed in the middle part of described sleeve pipe, the lower part of the block board is provided with using cannula center as the center of circle
Arc-shaped slot cuts with introduction bevel at the port of arc-shaped slot；
Shaft is equipped with by bearing in corresponding two bearings mounting hole in two support plates, wherein one end of shaft is stretched out
The support plate of side is corresponded to, belt pulley second corresponding with belt pulley first, belt pulley first are installed in the shaft between two support plates
V-shape belt is set between belt pulley second；Downslide moving axis is installed in two vertical slotted holes in correspondence with each other, downslide moving axis
Wherein the support plate of corresponding side is stretched out in one end, and the middle part of downslide moving axis is stretched out upwards there are two slide bar, and two slide bars pass through above-mentioned
Two circle lift spans of supporting block form sliding pair, are set with spring on two slide bars between the supporting block and downslide moving axis；Two
Sliding axle is installed in arc slotted hole in correspondence with each other and forms sliding pair, corresponding side is stretched out in wherein one end of upper sliding axle
Support plate, pass through the circle mounting hole in the middle part of above-mentioned two push-pull arm in the middle part of the upper sliding axle and be fixedly connected with push-pull arm, two
Central fixed shaft hole on the both ends of the casing of push-pull arm lower part and the support plate of two sides is corresponding, the diameter in central fixed shaft hole and
The internal diameter of casing is identical, forms revolute pair inserted with central fixed shaft in central fixed shaft hole and casing；
The part that the shaft, downslide moving axis, upper sliding axle stretch out support plate is located at the same side of support plate, shaft, downslide
Polishing belt wheel is socketed on moving axis, upper sliding axle, the sand belt is sleeved on three polishing belt wheels, the support plate and
The both ends of arc slotted hole between polishing belt wheel are equipped with articulated joint, are hinged in each articulated joint and upper sliding axle is matched
Fixed hook.
2. a kind of cylindrical surface sand belt tensioning apparatus according to claim 1, it is characterised in that: described
Two upper ends of two push-pull arms are connected with holding rod, are set with turning set on the holding rod.
3. a kind of cylindrical surface sand belt tensioning apparatus according to claim 1, it is characterised in that: described
The diameter for the polishing belt wheel being socketed on downslide moving axis and upper sliding axle is identical, under the diameter for the polishing belt wheel being socketed in shaft is greater than
The diameter for the polishing belt wheel being socketed on sliding axle and upper sliding axle.
4. a kind of cylindrical surface sand belt tensioning apparatus according to claim 1, it is characterised in that: described
The length that shaft, downslide moving axis, upper sliding axle stretch out the part of support plate is greater than the length of polishing belt wheel.
5. a kind of cylindrical surface sand belt tensioning apparatus according to claim 1, it is characterised in that: described
The size of arc slotted hole and the matching of the size of upper sliding axle, the size of telescopic rod and the size matching of circle lift span.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920421988.7U CN209717299U (en) | 2019-03-30 | 2019-03-30 | Cylindrical surface sand belt tensioning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920421988.7U CN209717299U (en) | 2019-03-30 | 2019-03-30 | Cylindrical surface sand belt tensioning apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN209717299U true CN209717299U (en) | 2019-12-03 |
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ID=68689495
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920421988.7U Active CN209717299U (en) | 2019-03-30 | 2019-03-30 | Cylindrical surface sand belt tensioning apparatus |
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| CN (1) | CN209717299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761477A (en) * | 2019-03-30 | 2020-10-13 | 华北水利水电大学 | Tensioning device for polishing belt on surface of cylindrical workpiece |
-
2019
- 2019-03-30 CN CN201920421988.7U patent/CN209717299U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761477A (en) * | 2019-03-30 | 2020-10-13 | 华北水利水电大学 | Tensioning device for polishing belt on surface of cylindrical workpiece |
| CN111761477B (en) * | 2019-03-30 | 2024-05-17 | 华北水利水电大学 | Tensioning device for polishing belt on surface of cylindrical workpiece |
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