CN109132372A - It is a kind of to slip pawl type belt feeder buffering holdback certainly - Google Patents
It is a kind of to slip pawl type belt feeder buffering holdback certainly Download PDFInfo
- Publication number
- CN109132372A CN109132372A CN201811299269.9A CN201811299269A CN109132372A CN 109132372 A CN109132372 A CN 109132372A CN 201811299269 A CN201811299269 A CN 201811299269A CN 109132372 A CN109132372 A CN 109132372A
- Authority
- CN
- China
- Prior art keywords
- check
- holdback
- slot
- axis
- belt feeder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003139 buffering effect Effects 0.000 title claims abstract description 10
- 239000000872 buffer Substances 0.000 claims description 29
- 238000013016 damping Methods 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 12
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/24—Gearing between driving motor and belt- or chain-engaging elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
- B65G15/32—Belts or like endless load-carriers made of rubber or plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/24—Gearing between driving motor and belt- or chain-engaging elements
- B65G23/26—Applications of clutches or brakes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
- Emergency Lowering Means (AREA)
Abstract
It is a kind of to slip pawl type belt feeder buffering holdback certainly, including check seat and the check wheel being fixed on equipment rotating shaft, the check seat includes fixing seat, the fixing seat is equipped with the check slot being obliquely installed, described check slot one end directed downwardly extends into fixing seat, the one end of the check slot upward extends to the surface of fixing seat, the check slot position is equipped with placed side in one end of fixed seating face, check axis is placed on the placed side, the lower section of the check axis is equipped with the driving lever being fixed in fixing seat, one end of the driving lever is deep into the lower section of check axis, the other end extends in check slot, the driving lever can contact in check slot with check wheel.Check wheel is directly anchored in the shaft of equipment, check directly can be carried out to equipment, avoids the complicated processes for carrying out check by Multi-stage transmission, less intermediate link accident odds improves check dawn rate, while improving the safety of holdback.
Description
Technical field
The invention belongs to coal mine technical field of auxiliary equipment, and in particular to a kind of to slip pawl type belt feeder buffering check certainly
Device.
Background technique
Holdback is widely used in daily belt feeder transportation system, is especially promptly stopped in belt feeder full-load run
Che Shi, holdback are the second level or three-level ensuring equipment as the safe and reliable braking system of belt feeder, are safely operated in belt feeder
Aspect has very important significance.
By the way that analysis is investigated to existing product, most of holdback is to be additionally arranged check in speed reducer low speed output end
Check brake force is passed to roller by speed reducer low speed output end when emergency episode occurs by device, reliable for ensureing
Braking, due to check process by gear transmit check power, gear and meshing state well whether be directly related to braking can
By whether, gear too many levels transmission there are some potential safety problemss；Existing holdback is rigid check, is produced during check
Raw rigid collision, easily damage equipment.
Summary of the invention
It is an object of the invention to solve above-mentioned problem existing in the prior art, one kind is provided and slips pawl type belt feeder certainly
Holdback is buffered, slewing equipment and clamping device are set, workpiece can be made to be rotated, and after rotation press from both sides workpiece
Tightly, it by adjusting the height of tooling, can be realized to the cutting in workpiece all angles.
The present invention is achieved by the following technical solutions:
It is a kind of from slipping pawl type belt feeder buffering holdback, including check seat and the check wheel being fixed on equipment rotating shaft,
The lower section of check wheel is arranged in the check seat, and the check seat is equipped with check axis, and the check seat is prevented by check axis
Check wheel rotates backward；The check seat includes fixing seat, and the fixing seat is equipped with the check slot being obliquely installed, the check
Slot one end directed downwardly extends into fixing seat, and the one end of the check slot upward extends to the surface of fixing seat, the check slot
It is equipped with placed side positioned at one end of fixed seating face, is placed with check axis on the placed side, the lower section of the check axis is equipped with
The driving lever being fixed in fixing seat, one end of the driving lever are deep into the lower section of check axis, and the other end extends in check slot, institute
Stating driving lever can contact in check slot with check wheel；The check wheel is equipped with gear tooth, and the gear tooth can touch driving lever,
The gear tooth is capable of the bottom of inswept check slot one end downward.Check wheel is directly anchored in the shaft of equipment, it can be direct
Check is carried out to equipment, avoids the complicated processes for carrying out check by Multi-stage transmission, what less intermediate link accident occurred
Probability improves check dawn rate, while improving the safety of holdback.
The check slot downward one end bottom be equipped with damping unit.Setting damping unit can make equipment rotating shaft in check
Buffer function is played in the process, makes equipment rotating shaft deceleration check, is avoided check wheel and check axis from generating rigid collision, is avoided conveying
The damage of equipment and holdback.
The damping unit is oil buffer.Oil buffer is set, check is carried out to check wheel using oil pressure, it can
Biggish impact force is born, the deceleration of check wheel is conducive to, check wheel and check axis is avoided to generate rigid collision.
The damping unit is spring buffer, and the spring buffer includes guide rod, spring and push plate, and the guide rod is solid
It is scheduled on the bottom of check slot, spring is set on the guide rod, the end of the spring is fixed with push plate.Using spring as slow
Flushing device, convenient for materials, can reduce cost under the premise of guaranteeing the buffering effect of check wheel.
The push plate is equipped with arc groove towards the side of check slot.Arc groove is set in push plate, it can be with check axis shape
At cooperation, it is ensured that the movement of check axis acts on neutrality with check axis is stablized.
The placed side is equipped with block.Block is set on placed side, can be avoided check axis and fall, guarantees holdback
Operational safety.
The driving lever is at V-type.Using V-type driving lever, it can be realized quickly stirring to check axis, check wheel can be made to contact
To after driving lever, check axis is pushed into check slot rapidly by driving lever, is kept the reaction of holdback rapider, is made equipment rotating shaft at low turn
The lower i.e. check of speed, guarantees the safety of equipment.
The check wheel includes fixed disk, connector sleeve and check disk, and the fixed disk and check disk are separately fixed at connection
The both ends of set, the fixed disk be equipped with fixation hole, the check disk be equipped with multiple gear teeth, it is described gear tooth one side with pass through
The another side of the axis collinear of check disk, the gear tooth is arranged at an angle with the axis for passing through check disk.In fixed disk and
Connector sleeve is used between check disk, is able to bear biggish torque, it is ensured that the use intensity of check wheel.
Reinforcing rib is equipped in the connector sleeve.Reinforcing rib is set, the intensity of check wheel can be further increased, enhances check
Wheel bears the ability of torsion, guarantees that check wheel does not damage in use.
The both ends of the check axis are equipped with block.Block is set at the both ends of check axis, can be avoided check axis along inverse
Only deviate from check slot in slot motion process.Ensure the safe operation of holdback.
Compared with prior art, the beneficial effects of the present invention are:
1, a kind of pawl type belt feeder that slips certainly of the invention buffers holdback, and check wheel is directly anchored to the shaft of equipment
On, check directly can be carried out to equipment, avoid the complicated processes for carrying out check by Multi-stage transmission, less intermediate link
Accident odds improves check dawn rate, while improving the safety of holdback；
2, a kind of pawl type belt feeder that slips certainly of the invention buffers holdback, and setting damping unit can make equipment rotating shaft exist
Buffer function is played during check, makes equipment rotating shaft deceleration check, avoids check wheel and check axis from generating rigid collision, avoids
The damage of conveying equipment and holdback；
3, a kind of pawl type belt feeder that slips certainly of the invention buffers holdback, oil buffer is arranged, using oil pressure to inverse
Only wheel carries out check, is able to bear biggish impact force, is conducive to the deceleration of check wheel, avoids check wheel and check axis from generating rigid
Property collision；
4, a kind of pawl type belt feeder that slips certainly of the invention buffers holdback, using connection between fixed disk and check disk
Set, is able to bear biggish torque, it is ensured that the use intensity of check wheel, and reinforcing rib is set in connector sleeve, it can be further
Increase the intensity of check wheel, enhancing check wheel bears the ability of torsion, guarantees that check wheel does not damage in use；
5, a kind of pawl type belt feeder that slips certainly of the invention buffers holdback, and block is arranged at the both ends of check axis, can
Check axis is avoided to deviate from check slot along check slot motion process.Ensure the safe operation of holdback.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, attached drawing needed in description will be made below simple
Ground introduction, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ordinary skill
For personnel, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is side structure schematic view of the invention；
Fig. 3 is schematic cross-sectional view of the invention；
Fig. 4 is damping unit of the invention by pressure texture schematic diagram；
Fig. 5 is check holder structure schematic diagram of the invention；
Fig. 6 is check disk schematic view of the front view of the invention；
Fig. 7 is check disk right view structural schematic diagram of the invention；
Fig. 8 is that check of the invention is faced left view structure schematic diagram；
Wherein, 1, check seat, 2, check wheel, 3, equipment rotating shaft, 11, fixing seat, 12, driving lever, 13, block, 14, check
Axis, 15, check slot, 21, fixed disk, 22, connector sleeve, 23, check disk, 24, gear tooth, 25, reinforcing rib, 26, fixation hole.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawing:
As shown in Figs. 1-2, a kind of to slip pawl type belt feeder buffering holdback certainly, including check seat 1 turns with equipment is fixed on
The lower section of check wheel 2 is arranged in check wheel 2 on axis 3, the check seat 1, and check seat 1 fixes on the ground, or is fixed on
On the platform of customization, the check seat 1 is equipped with check axis 14, and the check seat 1 prevents check wheel 2 reversed by check axis 14
Rotation；The check seat 1 includes fixing seat 11, and the fixing seat 11 is equipped with the check slot 15 being obliquely installed, the check slot
15 one end directed downwardly extend into fixing seat 11, and the one end of the check slot 15 upward extends to the surface of fixing seat 11, described
One end that check slot 15 is located at 11 surface of fixing seat is equipped with placed side, is placed with check axis 14, the check on the placed side
The lower section of axis 14 is equipped with the driving lever 12 being fixed in fixing seat 11, and one end of the driving lever 12 is deep into the lower section of check axis 14,
The other end extends in check slot 15, and the driving lever 12 can contact in check slot 15 with check wheel 2, when check wheel 2 is reverse
When rotation, driving lever 12 can be touched, driving lever 12 can be swung under the drive of check wheel 2, when driving lever 12 swing when, driving lever 12 it is another
Check axis 14 is pushed into check slot 15 by end, and check axis 14 reaches the bottom of check slot 15 along 15 slide downward of check slot；It is described
Check wheel 2 is equipped with gear tooth 24, and the gear tooth 24 can touch driving lever 12, the gear tooth 24 can inswept check slot 15 downward
The bottom of one end when keeping off 24 inswept check slot 15 of tooth, is kept off after check axis 14 reaches the bottom of check slot 15 by check axis 14
Column prevents check wheel 2 from continuing backwards rotation.Check wheel 2 is directly anchored in the shaft of equipment, directly equipment can be carried out
Check, avoids the complicated processes that check is carried out by Multi-stage transmission, and less intermediate link accident odds improves
Check dawn rate, while improving the safety of holdback.
As shown in Figure 3-4, the check slot 15 downward one end bottom be equipped with damping unit.Setting damping unit can make
Equipment rotating shaft 3 plays buffer function during check, makes 3 deceleration check of equipment rotating shaft, and check wheel 2 and check axis 14 is avoided to produce
Raw rigid collision, avoids the damage of conveying equipment and holdback.
The damping unit is oil buffer.Oil buffer is set, check, energy are carried out to check wheel 2 using oil pressure
Biggish impact force is enough born, the deceleration of check wheel 2 is conducive to, check wheel 2 and check axis 14 is avoided to generate rigid collision.
The damping unit is spring buffer.The spring buffer includes guide rod, spring and push plate, and the guide rod is solid
It is scheduled on the bottom of check slot 15, spring is set on the guide rod, the end of the spring is fixed with push plate.Using spring conduct
Buffer unit, convenient for materials, can reduce cost under the premise of guaranteeing the buffering effect of check wheel 2.
The push plate is equipped with arc groove towards the side of check slot 15.Arc groove is set in push plate, it can be with check axis
14 formed cooperation, it is ensured that check axis 14 move to neutrality.
The placed side is equipped with block 13.Block 13 is set on placed side, can be avoided check axis 14 and fall, is guaranteed
The operational safety of holdback, in the application, placed side is arranged to the cambered surface to lower recess, and check axis 14 is placed in cambered surface,
It can ensure that check axis 14 does not roll, check axis 14 is avoided to fall.
As shown in figure 5, the driving lever 12 is at V-type.Using V-type driving lever 12, quickly stirring to check axis 14 can be realized,
After check wheel 2 can be made to touch driving lever 12, check axis 14 is pushed into check slot 15 rapidly by driving lever 12, makes the reaction of holdback
More rapidly, make the i.e. check at the low rotational speed of equipment rotating shaft 3, guarantee the safety of equipment.
As shown in figs 6-8, the check wheel 2 includes fixed disk 21, connector sleeve 22 and check disk 23,21 He of fixed disk
Check disk 23 is separately fixed at the both ends of connector sleeve 22, and the fixed disk 21 is equipped with fixation hole, and the check disk 23 is equipped with
Multiple gear teeth 24, it is described gear tooth 24 one side and pass through check disk 23 axis collinear, it is described gear tooth 24 another side with pass through
The axis of check disk 23 is arranged at an angle.Between fixed disk 21 and check disk 23 use connector sleeve 22, be able to bear compared with
Big torque, it is ensured that the use intensity of check wheel 2.
Reinforcing rib 25 is equipped in the connector sleeve 22.Reinforcing rib 25 is set, the intensity of check wheel 2 can be further increased,
Enhance the ability that check wheel 2 bears torsion, guarantees that check wheel 2 does not damage in use.
The both ends of the check axis 14 are equipped with block 13.Block 13 is set at the both ends of check axis 14, can be avoided check
Axis 14 is being deviate from check slot 15 along 15 motion process of check slot.Ensure the safe operation of holdback.
Above-mentioned technical proposal is one embodiment of the present invention, for those skilled in the art, at this
On the basis of disclosure of the invention application method and principle, it is easy to make various types of improvement or deformation, be not limited solely to this
Invent method described in above-mentioned specific embodiment, therefore previously described mode is only preferred, and and do not have limitation
The meaning of property.
Claims (10)
1. a kind of slip pawl type belt feeder buffering holdback certainly, which is characterized in that including check seat and be fixed on equipment rotating shaft
Check wheel, the check seat is arranged in the lower section of check wheel, and the check seat is equipped with check axis, and the check seat passes through inverse
Only axis prevents check wheel from rotating backward；The check seat includes fixing seat, and the fixing seat is equipped with the check slot being obliquely installed,
Described check slot one end directed downwardly extends into fixing seat, and the one end of the check slot upward extends to the surface of fixing seat, institute
It states check slot position and is equipped with placed side in one end of fixed seating face, be placed with check axis on the placed side, the check axis
Lower section is equipped with the driving lever being fixed in fixing seat, and one end of the driving lever is deep into the lower section of check axis, and the other end extends to inverse
Only in slot, the driving lever can contact in check slot with check wheel；The check wheel is equipped with gear tooth, and the gear tooth can touch
Contact driving lever, the gear tooth is capable of the bottom of inswept check slot one end downward.
2. a kind of pawl type belt feeder that slips certainly according to claim 1 buffers holdback, which is characterized in that the check slot
The bottom of one end is equipped with damping unit downward.
3. a kind of pawl type belt feeder that slips certainly according to claim 2 buffers holdback, which is characterized in that the damping dress
It is set to oil buffer.
4. a kind of pawl type belt feeder that slips certainly according to claim 2 buffers holdback, which is characterized in that the damping dress
It is set to spring buffer, the spring buffer includes guide rod, spring and push plate, and the guide rod is fixed on the bottom of check slot,
Spring is set on the guide rod, the end of the spring is fixed with push plate.
5. a kind of pawl type belt feeder that slips certainly according to claim 4 buffers holdback, which is characterized in that the push plate court
Arc groove is equipped with to the side of check slot.
6. a kind of pawl type belt feeder that slips certainly according to claim 1 buffers holdback, which is characterized in that the placed side
It is equipped with block.
7. according to claim 1 a kind of from slipping pawl type belt feeder buffering holdback, which is characterized in that the driving lever at
V-type.
8. a kind of pawl type belt feeder that slips certainly according to claim 1 buffers holdback, which is characterized in that the check wheel
Including fixed disk, connector sleeve and check disk, the fixed disk and check disk are separately fixed at the both ends of connector sleeve, the fixed disk
It is equipped with fixation hole, the check disk is equipped with multiple gear teeth, the one side of the gear tooth and the axis collinear for passing through check disk, institute
The another side for stating gear tooth is arranged at an angle with the axis for passing through check disk.
9. a kind of pawl type belt feeder that slips certainly according to claim 8 buffers holdback, which is characterized in that the connector sleeve
It is interior to be equipped with reinforcing rib.
10. a kind of pawl type belt feeder that slips certainly according to claim 1 buffers holdback, which is characterized in that the check
The both ends of axis are equipped with block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299269.9A CN109132372B (en) | 2018-11-02 | 2018-11-02 | Self-sliding pawl type belt conveyor buffer backstop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299269.9A CN109132372B (en) | 2018-11-02 | 2018-11-02 | Self-sliding pawl type belt conveyor buffer backstop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109132372A true CN109132372A (en) | 2019-01-04 |
| CN109132372B CN109132372B (en) | 2024-03-22 |
Family
ID=64807370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811299269.9A Active CN109132372B (en) | 2018-11-02 | 2018-11-02 | Self-sliding pawl type belt conveyor buffer backstop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109132372B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775527A (en) * | 2019-10-25 | 2020-02-11 | 太原理工大学 | Electric hydraulic control clamping elastic belt linkage device for maintenance and inspection of inclined belt conveyor |
| CN112441391A (en) * | 2020-12-01 | 2021-03-05 | 滁州职业技术学院 | Conveying device with reverse locking function and commercial concrete station |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034768U (en) * | 1988-03-16 | 1989-03-29 | 山东省威海市量具厂 | Retaining mechanism for fishing reels |
| JP2004044689A (en) * | 2002-07-11 | 2004-02-12 | Fuji Heavy Ind Ltd | Parking unit of automatic transmission |
| CN200958553Y (en) * | 2006-08-30 | 2007-10-10 | 新汶矿业集团有限责任公司协庄煤矿 | Speed reducer with non-return device |
| CN201961835U (en) * | 2011-01-04 | 2011-09-07 | 北京京东方光电科技有限公司 | Roller device and drive equipment |
| CN102359514A (en) * | 2011-09-01 | 2012-02-22 | 谢新民 | Swing pressing block type reversible backstop |
| CN102774607A (en) * | 2011-05-12 | 2012-11-14 | 天津中外建输送机械有限公司 | Electric roller capable of preventing reverse rotation |
| CN104192532A (en) * | 2014-08-28 | 2014-12-10 | 中冶长天国际工程有限责任公司 | Chain breakage protection device for chain, conveyer, application of chain breakage protection device for chain and application of conveyer |
| CN204057008U (en) * | 2014-08-06 | 2014-12-31 | 成都大宏立机器股份有限公司 | A kind of belt conveyer with anti-rotation holdback |
| CN204057007U (en) * | 2014-08-06 | 2014-12-31 | 成都大宏立机器股份有限公司 | A kind of belt conveyer with tailstock ratchet holdback |
| CN207030296U (en) * | 2017-08-03 | 2018-02-23 | 九江萍钢钢铁有限公司 | A kind of backstop device for belt conveyor of iron plate contact blocked |
| CN108167350A (en) * | 2017-12-29 | 2018-06-15 | 大庆市天德忠石油科技有限公司 | Oil pumping unit brake assembly |
| CN209291328U (en) * | 2018-11-02 | 2019-08-23 | 新汶矿业集团有限责任公司 | It is a kind of to slip pawl type belt feeder buffering holdback certainly |
-
2018
- 2018-11-02 CN CN201811299269.9A patent/CN109132372B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034768U (en) * | 1988-03-16 | 1989-03-29 | 山东省威海市量具厂 | Retaining mechanism for fishing reels |
| JP2004044689A (en) * | 2002-07-11 | 2004-02-12 | Fuji Heavy Ind Ltd | Parking unit of automatic transmission |
| CN200958553Y (en) * | 2006-08-30 | 2007-10-10 | 新汶矿业集团有限责任公司协庄煤矿 | Speed reducer with non-return device |
| CN201961835U (en) * | 2011-01-04 | 2011-09-07 | 北京京东方光电科技有限公司 | Roller device and drive equipment |
| CN102774607A (en) * | 2011-05-12 | 2012-11-14 | 天津中外建输送机械有限公司 | Electric roller capable of preventing reverse rotation |
| CN102359514A (en) * | 2011-09-01 | 2012-02-22 | 谢新民 | Swing pressing block type reversible backstop |
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| CN204057007U (en) * | 2014-08-06 | 2014-12-31 | 成都大宏立机器股份有限公司 | A kind of belt conveyer with tailstock ratchet holdback |
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| CN108167350A (en) * | 2017-12-29 | 2018-06-15 | 大庆市天德忠石油科技有限公司 | Oil pumping unit brake assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775527A (en) * | 2019-10-25 | 2020-02-11 | 太原理工大学 | Electric hydraulic control clamping elastic belt linkage device for maintenance and inspection of inclined belt conveyor |
| CN112441391A (en) * | 2020-12-01 | 2021-03-05 | 滁州职业技术学院 | Conveying device with reverse locking function and commercial concrete station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109132372B (en) | 2024-03-22 |
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