CN114251412A - Balanced constant-force furnace tube hanger - Google Patents
Balanced constant-force furnace tube hanger Download PDFInfo
- Publication number
- CN114251412A CN114251412A CN202111318902.6A CN202111318902A CN114251412A CN 114251412 A CN114251412 A CN 114251412A CN 202111318902 A CN202111318902 A CN 202111318902A CN 114251412 A CN114251412 A CN 114251412A
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- China
- Prior art keywords
- hanger
- furnace tube
- box body
- rod
- suspender
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- 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.)
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- 239000000725 suspension Substances 0.000 claims abstract description 38
- 210000004907 gland Anatomy 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 238000003466 welding Methods 0.000 abstract description 6
- 230000010354 integration Effects 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Commercial Cooking Devices (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention belongs to the technical field of furnace tube hangers, and relates to a balanced constant-force furnace tube hanger which comprises a main hanger, wherein two ends of the main hanger are respectively connected with one end of a counterweight rod and one end of an adjustable hanger rod through a counterweight pin shaft and a hanger rod pin shaft, and the main hanger is connected with a rooting lifting lug through a main shaft; the counterweight rod is provided with a counterweight block and a counterweight block; the other end of the adjustable suspender is connected with a spring box, the spring box is connected with a plurality of lower suspenders, the upper part of the lower suspender is connected with the spring box, and the bottom end of the lower suspender is provided with a suspender lug. The suspension device has a simple structure, realizes constant high-precision suspension of the furnace tube of the heating furnace, has reliable performance and high integration level, and can realize intensive structural layout; the furnace tube is flexibly suspended, has no additional stress, and can effectively avoid the cracking and deformation of the welding line of the furnace tube.
Description
Technical Field
The invention relates to a balanced constant-force furnace tube hanger, belonging to the technical field of furnace tube hangers.
Background
The constant-force spring hanger is used for suspending a heating furnace tube in most petrochemical devices at present, the constant-force spring hanger is large in volume structure, intensive structure layout is difficult to realize, and due to the constant-force spring hanger structure and the manufacturing process, the prior art cannot meet the high constant-force requirement at all, additional stress is caused to the furnace tube in the using process, so that the welding seam of the furnace tube is cracked and deformed, the whole device stops production when the furnace tube is replaced, and serious economic loss and potential safety hazards are generated.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the balance type constant force furnace tube hanging bracket is simple in structure, high accuracy of the hanging moment of the furnace tube of the heating furnace is achieved, the performance is reliable, the integration level is high, and intensive structural layout can be achieved; the furnace tube is flexibly suspended, has no additional stress, and can effectively avoid the cracking and deformation of the welding line of the furnace tube.
The balance type constant force furnace tube hanging bracket comprises a main hanging bracket, wherein two ends of the main hanging bracket are respectively connected with one end of a balance weight rod and one end of an adjustable hanging rod through a balance weight pin shaft and a hanging rod pin shaft, and the main hanging bracket is connected with a rooting lifting lug through a main shaft; the counterweight rod is provided with a counterweight block and a counterweight block; the other end of the adjustable suspender is connected with a spring box, the spring box is connected with a plurality of lower suspenders, the upper part of the lower suspender is connected with the spring box, and the bottom end of the lower suspender is provided with a suspender lug.
In the using process, the hanger rod lifting lug at the bottom end of the lower hanger rod is connected with the furnace tube lifting lug; the balancing weight is the basic counter weight, the balancing piece has the thickness of multiple difference, choose the balancing piece of the different thickness of polylith for use according to the concrete bearing capacity of spring box, make balancing weight and the balancing piece and the adjustable jib one end of counterweight rod one end can reach the balance, the constant degree precision is higher, and a plurality of lower jibs are connected to the spring box, can increase substantially the density of heating furnace unit area boiler tube, the additional stress that has solved current constant force spring gallows and has caused for the boiler tube because of the constant degree is low, realize load and counter weight more than 99% balance, the flexible of setting up of spring box realizes hanging to the boiler tube, avoid the boiler tube welding seam fracture and variant to appear.
Preferably, the spring box comprises a box body, a plurality of pairs of corresponding through holes are formed in a top plate and a bottom plate of the box body, the lower suspension rod penetrates through the top plate and the bottom plate of the box body from the through holes, a spring is sleeved on the periphery of the lower suspension rod in the box body, a gland is penetrated through the upper part of the lower suspension rod in the box body, a first nut is arranged on the top surface of the gland in the box body, the first nut is in threaded connection with the lower suspension rod, and two ends of the spring are respectively abutted against the bottom plate and the gland of the box body; the adjustable suspender is connected with the top plate of the box body. The adjustable suspension rod consists of a screw rod with a lifting lug and a turnbuckle, the bottom end of the adjustable suspension rod is connected with a box body top plate, the box body top plate is fixedly connected with the side wall of the box body through a bolt, and the mounting height of the spring box can be adjusted by adjusting the adjustable suspension rod; the hanger rod lifting lugs are connected with the furnace tube lifting lugs, the furnace tube lifting lugs pull the lower hanger rod downwards to drive the gland compression springs, and the suspension torque of each furnace tube can be finely adjusted by adjusting the position of the first nut, so that the furnace tubes with different lengths can be matched; the furnace tube is flexibly suspended by the cooperation of the lower suspension rod, the gland and the spring. The first nut is double nuts, and the locking effect is good. During the installation, the lower jib top on spring box upper portion can set up nut two, and each part structure of jib department under convenient locking installation can take off nut two after the installation finishes, also can remain nut two, and the maintenance of nut two can not cause the influence to the normal work of jib down.
Preferably, a guide sleeve is additionally arranged on the periphery of the lower suspender below the gland, the gland is in a step shape, the top of the guide sleeve is in threaded connection with the small-diameter end of the gland, the lower part of the guide sleeve penetrates out of the bottom plate of the box body, and the spring is sleeved on the periphery of the guide sleeve. The uide bushing can reciprocate along with reciprocating of gland and jib down, and the jib can realize the swing of certain range in the uide bushing down, and the setting up of uide bushing makes the jib have certain space of rocking down, makes the flexonics who accords with spring box and boiler tube more.
Preferably, the main hanger is an A-shaped frame, the balance weight rod is connected with the tip end of the A-shaped frame, the adjustable suspender is connected with the opening end of the A-shaped frame, and the two supports at the opening end of the A-shaped frame are respectively connected with the spring box through the adjustable suspender. The two supports of the A-shaped frame suspend the spring box through the adjustable suspension rods respectively, so that the suspension of the spring box is more stable and reliable, and the spring box is more favorable for keeping a balance state.
The plurality of lower hanger rods can be arranged in two rows, and the two rows of lower hanger rods are arranged in a staggered manner. The two rows of lower suspension rods are completely staggered, the two rows of lower suspension rods are respectively close to two ends of the spring box, and 6-12 furnace tubes can be suspended in one spring box, so that the integrated level is high, and the suspension device can be widely used for suspending furnace tubes of heating furnaces of petrochemical devices. The arrangement position of the lower suspender can be determined according to the position of the actual furnace tube.
Preferably, a positioning plate is fixed at the main hanging bracket connected with the rooting lifting lug, the positioning plate is arc-shaped, a plurality of positioning holes are formed in the positioning plate and are arranged in an arc shape, and the upper part of the rooting lifting lug is connected with the positioning holes through positioning shafts; the top end of the rooting lifting lug is fixedly connected with a rooting beam. During installation, the positioning shaft is inserted into the rooting lifting lug and the proper positioning hole, so that the rooting lifting lug is prevented from shaking all the time, and the installation is convenient; after the installation is finished, the positioning shaft is pulled out, so that the rooting lifting lug can be matched with the main shaft to rotate freely.
Preferably, a graphite-based self-lubricating shaft sleeve is arranged between the main hanging bracket and the main shaft, so that dry self-lubricating is realized.
Preferably, the distance between the main shaft and the balance weight pin shaft is greater than the distance between the main shaft and the suspender pin shaft, so that the balance weight and the balance weight with the same weight can balance the furnace tube with larger weight.
Compared with the prior art, the invention has the beneficial effects that:
the suspension torque of the heating furnace tube is constant, the high precision is realized, the performance is reliable, the integration level is high, and the intensive structure layout can be realized; the furnace tube is flexibly suspended, has no additional stress, and can effectively avoid the cracking and deformation of the welding line of the furnace tube.
Drawings
FIG. 1 is a schematic view of a balanced constant-force furnace tube hanger;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
fig. 4 is a partial enlarged view of C.
In the figure: 1. a balancing weight; 2. a counterbalance; 3. a weight lever; 4. a counterweight pin shaft; 5. a main hanger; 6. positioning a plate; 7. positioning the shaft; 8. rooting beams; 9. rooting and lifting lugs; 10. positioning holes; 11. a main shaft; 12. a boom pin; 13. an adjustable hanger rod; 14. a hanger rod lifting lug; 15. furnace tube lifting lugs; 16. a graphite-based self-lubricating shaft sleeve; 17. a box body; 18. a guide sleeve; 19. a base plate; 20. a spring; 21. a second nut; 22. a lower boom; 23. a gland; 24. a first nut; 25. a top plate; 26. a spring box.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1-4, the balanced constant-force furnace tube hanger of the invention comprises a main hanger 5, wherein two ends of the main hanger 5 are respectively connected with one end of a counterweight rod 3 and one end of an adjustable hanger rod 13 through a counterweight pin shaft 4 and a hanger rod pin shaft 12, and the main hanger 5 is connected with a rooting lifting lug 9 through a main shaft 11; the counterweight rod 3 is provided with a counterweight block 1 and a counterweight block 2; the other end of the adjustable suspender 13 is connected with a spring box 26, the spring box 26 is connected with a plurality of lower suspenders 22, the upper part of the lower suspender 22 is connected with the spring box 26, and the bottom end of the lower suspender 22 is provided with a suspender lifting lug 14.
In this embodiment:
the spring box 26 comprises a box body 17, a top plate 25 and a bottom plate 19 of the box body 17 are provided with a plurality of pairs of corresponding through holes, a lower suspension rod 22 penetrates through the top plate 25 and the bottom plate 19 of the box body 17 from the through holes, a spring 20 is sleeved on the periphery of the lower suspension rod 22 in the box body 17, a gland 23 penetrates through the upper part of the lower suspension rod 22 in the box body 17, the top surface of the gland 23 in the box body 17 is provided with a first nut 24, the first nut 24 is in threaded connection with the lower suspension rod 22, and two ends of the spring 20 are respectively abutted against the bottom plate 19 and the gland 23 of the box body 17; the adjustable boom 13 is connected to the top panel 25 of the box 17. The adjustable suspension rod 13 consists of a screw rod with a lifting lug and a turnbuckle, the bottom end of the adjustable suspension rod 13 is connected with a top plate 25 of the box body 17 in a hanging way, the top plate 25 of the box body 17 is fixedly connected with the side wall of the box body 17 through a bolt, and the installation height of the spring box 26 can be adjusted through adjusting the adjustable suspension rod 13; the hanger rod lifting lugs 14 are connected with the furnace tube lifting lugs 15, the furnace tube lifting lugs 15 pull the lower hanger rods 22 downwards to drive the gland 23 to compress the springs 20, and the suspension torque of each furnace tube can be finely adjusted by adjusting the positions of the first nuts 24, so that the furnace tubes with different lengths can be matched; the lower hanger rod 22, the gland 23 and the spring 20 cooperate to realize flexible suspension of the furnace tube. The first nut 24 is a double nut, and the locking effect is good. During the installation, the lower jib 22 top on spring box 26 upper portion can set up two 21 nuts, and the each part structure of jib 22 department under convenient locking installation can be taken off two 21 nuts after the installation finishes, also can remain two 21 nuts, and the maintenance of two 21 nuts can not lead to the fact the influence to the normal work of jib 22 down.
The periphery of a lower suspension rod 22 below a gland 23 is additionally provided with a guide sleeve 18, the gland 23 is in a step shape, the top of the guide sleeve 18 is in threaded connection with the small-diameter end of the gland 23, the lower part of the guide sleeve 18 penetrates through a bottom plate 19 of a box body 17, and a spring 20 is sleeved on the periphery of the guide sleeve 18. The guide sleeve can move up and down along with the up-and-down movement of the gland 23 and the lower suspension rod 22, the lower suspension rod 22 can swing in a certain range in the guide sleeve 18, and the lower suspension rod 22 has a certain swing space due to the arrangement of the guide sleeve 18, so that the flexible connection between the spring box 26 and the furnace tube is more met.
The main hanger 5 is an A-shaped frame, the balance weight rod 3 is connected with the pointed end of the A-shaped frame, the adjustable suspender 13 is connected with the opening end of the A-shaped frame, and the two supports at the opening end of the A-shaped frame are respectively connected with the spring box 26 through the adjustable suspender 13. The two supports of the A-shaped frame respectively suspend the spring box 26 through the adjustable suspension rod 13, so that the suspension of the spring box 26 is more stable and reliable, and the spring box 26 can be kept in a balanced state.
The plurality of lower hanger bars 22 may be arranged in two columns, and the two columns of lower hanger bars 22 are arranged offset. The two rows of lower hanger rods 22 are completely staggered, the two rows of lower hanger rods 22 are respectively close to two ends of the spring box 26, and 6-12 furnace tubes can be suspended by one spring box 26, so that the integration level is high, and the suspension device can be widely used for suspending furnace tubes of heating furnaces of petrochemical devices. The arrangement position of the lower hanger rods 22 can be determined according to the position of the actual furnace tube.
A positioning plate 6 is fixed at the main hanging bracket 5 connected with a rooting lifting lug 9, the positioning plate 6 is in an arc shape, a plurality of positioning holes 10 are formed in the positioning plate 6, the positioning holes 10 are arranged in an arc shape, and the upper part of the rooting lifting lug 9 is connected with the positioning holes 10 through a positioning shaft 7; the top end of the rooting lifting lug 9 is fixedly connected with a rooting beam 8. During installation, the positioning shaft 7 is inserted into the rooting lifting lug 9 and the proper positioning hole 10, so that the rooting lifting lug 9 is prevented from shaking all the time, and the installation is convenient; after the installation is finished, the positioning shaft 7 is pulled out, so that the rooting lifting lug 9 can be matched with the main shaft 11 to rotate freely.
A graphite-based self-lubricating shaft sleeve 16 is arranged between the main hanger 5 and the main shaft 11, so that dry self-lubricating is realized.
The distance between the main shaft 11 and the balance weight pin shaft 4 is greater than the distance between the main shaft 11 and the hanger rod pin shaft 12, so that the balance weight block 1 and the balance weight block 2 with the same weight can balance the furnace tube with larger weight.
In the use process, the hanger rod lifting lug 14 at the bottom end of the lower hanger rod 22 is connected with the furnace tube lifting lug 15; counter weight 1 is basic counter weight, counter weight 2 has the thickness of multiple difference, choose the counter weight 2 of the different thickness of polylith for use according to the concrete bearing capacity of spring box 26, make counter weight 1 and counter weight 2 and adjustable jib 13 one end of counter weight 3 one end can reach the balance, the constant degree precision is higher, and a plurality of lower jibs 22 are connected to spring box 26, can increase substantially the density of heating furnace unit area boiler tube, the additional stress that causes for the boiler tube because of the constant degree is low to have solved current constant force spring 20 gallows, realize load and counter weight more than 99% balance, the flexible of boiler tube is suspended in the realization of setting up of spring box 26, avoid the boiler tube welding seam fracture and variant to appear.
Claims (7)
1. The utility model provides a balanced type constant force boiler tube gallows which characterized in that: the device comprises a main hanging bracket (5), wherein two ends of the main hanging bracket (5) are respectively connected with one end of a counterweight rod (3) and one end of an adjustable suspender (13) through a counterweight pin shaft (4) and a suspender pin shaft (12), and the main hanging bracket (5) is connected with a rooting lifting lug (9) through a main shaft (11); the counterweight rod (3) is provided with a counterweight block (1) and a counterweight block (2); the other end of the adjustable suspender (13) is connected with a spring box (26), the spring box (26) is connected with a plurality of lower suspenders (22), the upper parts of the lower suspenders (22) are connected with the spring box (26), and suspender lifting lugs (14) are arranged at the bottom ends of the lower suspenders (22).
2. The balanced constant force furnace tube hanger of claim 1, wherein: the spring box (26) comprises a box body (17), a plurality of pairs of corresponding through holes are formed in a box body top plate (25) and a bottom plate (19), a lower suspension rod (22) penetrates through the box body top plate (25) and the bottom plate (19) from the through holes, a spring (20) is sleeved on the periphery of the lower suspension rod (22) in the box body (17), a gland (23) penetrates through the upper portion of the lower suspension rod (22) in the box body (17), a nut I (24) is arranged on the top surface of the gland (23) in the box body (17), the nut I (24) is in threaded connection with the lower suspension rod (22), and two ends of the spring (20) are respectively abutted against the box body bottom plate (19) and the gland (23); the adjustable hanger rod (13) is connected with a box body top plate (25).
3. The balanced constant force furnace tube hanger of claim 2, wherein: the periphery of a lower suspension rod (22) below a gland (23) is additionally provided with a guide sleeve (18), the gland (23) is in a step shape, the top of the guide sleeve (18) is in threaded connection with the small-diameter end of the gland (23), the lower part of the guide sleeve (18) penetrates out of a box body bottom plate (19), and a spring (20) is sleeved on the periphery of the guide sleeve (18).
4. The balanced constant force furnace tube hanger of claim 1, wherein: the main hanger (5) is an A-shaped frame, the balance weight rod (3) is connected with the pointed end of the A-shaped frame, the adjustable suspender (13) is connected with the opening end of the A-shaped frame, and the two supports at the opening end of the A-shaped frame are respectively connected with the spring box (26) through the adjustable suspender (13).
5. The balanced constant force furnace tube hanger of claim 1, wherein: a positioning plate (6) is fixed at the position of a main hanging bracket (5) connected with a rooting lifting lug (9), the positioning plate (6) is arc-shaped, a plurality of positioning holes (10) are formed in the positioning plate (6), the positioning holes (10) are arranged in an arc shape, and the upper part of the rooting lifting lug (9) is connected with the positioning holes (10) through a positioning shaft (7); the top end of the rooting lifting lug (9) is fixedly connected with a rooting beam (8).
6. The balanced constant force furnace tube hanger of claim 1, wherein: a graphite-based self-lubricating shaft sleeve (16) is arranged between the main hanger (5) and the main shaft (11).
7. The balanced constant force furnace tube hanger of claim 1, wherein: the distance between the main shaft (11) and the balance weight pin shaft (4) is larger than the distance between the main shaft (11) and the suspender pin shaft (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111318902.6A CN114251412B (en) | 2021-11-09 | 2021-11-09 | Balance type constant force furnace tube hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111318902.6A CN114251412B (en) | 2021-11-09 | 2021-11-09 | Balance type constant force furnace tube hanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114251412A true CN114251412A (en) | 2022-03-29 |
| CN114251412B CN114251412B (en) | 2023-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111318902.6A Active CN114251412B (en) | 2021-11-09 | 2021-11-09 | Balance type constant force furnace tube hanger |
Country Status (1)
| Country | Link |
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| CN (1) | CN114251412B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003021272A (en) * | 2001-07-06 | 2003-01-24 | Babcock Hitachi Kk | Spring hanger |
| CN205678265U (en) * | 2016-03-29 | 2016-11-09 | 江苏信泰机械有限公司 | A kind of lever balance suspension and support |
| CN206458911U (en) * | 2017-01-06 | 2017-09-01 | 河南大森机电股份有限公司 | A kind of cable channel suspension and support with vibration-damping function |
| CN108167539A (en) * | 2018-01-31 | 2018-06-15 | 北京石油化工工程有限公司 | Constant hanger device |
| JP3227483U (en) * | 2020-05-29 | 2020-08-27 | 日本建設工業株式会社 | Loading equipment |
| CN212657366U (en) * | 2020-04-30 | 2021-03-05 | 广西壮族自治区特种设备检验研究院 | Lever type adjustable load supporting and hanging frame |
| CN113586808A (en) * | 2020-04-30 | 2021-11-02 | 广西壮族自治区特种设备检验研究院 | Lever type adjustable load supporting and hanging frame |
-
2021
- 2021-11-09 CN CN202111318902.6A patent/CN114251412B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003021272A (en) * | 2001-07-06 | 2003-01-24 | Babcock Hitachi Kk | Spring hanger |
| CN205678265U (en) * | 2016-03-29 | 2016-11-09 | 江苏信泰机械有限公司 | A kind of lever balance suspension and support |
| CN206458911U (en) * | 2017-01-06 | 2017-09-01 | 河南大森机电股份有限公司 | A kind of cable channel suspension and support with vibration-damping function |
| CN108167539A (en) * | 2018-01-31 | 2018-06-15 | 北京石油化工工程有限公司 | Constant hanger device |
| CN212657366U (en) * | 2020-04-30 | 2021-03-05 | 广西壮族自治区特种设备检验研究院 | Lever type adjustable load supporting and hanging frame |
| CN113586808A (en) * | 2020-04-30 | 2021-11-02 | 广西壮族自治区特种设备检验研究院 | Lever type adjustable load supporting and hanging frame |
| JP3227483U (en) * | 2020-05-29 | 2020-08-27 | 日本建設工業株式会社 | Loading equipment |
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| Publication number | Publication date |
|---|---|
| CN114251412B (en) | 2023-12-08 |
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