CN210997395U - Four-column press machine special for spring brake box - Google Patents
Four-column press machine special for spring brake box Download PDFInfo
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- CN210997395U CN210997395U CN201922071406.XU CN201922071406U CN210997395U CN 210997395 U CN210997395 U CN 210997395U CN 201922071406 U CN201922071406 U CN 201922071406U CN 210997395 U CN210997395 U CN 210997395U
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- connecting portion
- hole
- spring brake
- pneumatic cylinder
- piston rod
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Abstract
The utility model relates to a four-column press of spring brake case is exclusively used in, its technical scheme main points are including frame, pneumatic cylinder and push down the subassembly, and the frame includes bottom plate and roof, the four corners of roof is through guide post fixed support on the bottom plate, and the below of roof is provided with the slide, and the piston rod of pneumatic cylinder is vertical after penetrating through the roof downwards, through coupling assembling detachable fixed connection on the slide; coupling assembling includes go-between and coupling nut, has seted up the step hole in the go-between, the step hole includes pore and coarse pore, and coupling nut includes connecting portion and lower connecting portion, goes up connecting portion upwards stretch out the pore in step hole and with the piston rod threaded connection of pneumatic cylinder, the step face pressure in step hole is held under on the up end of connecting portion, is connected through fastening bolt between go-between and the slide. The utility model has the advantages that can improve the stability of being connected between pneumatic cylinder and the slide, and make things convenient for the staff to take off the pneumatic cylinder and overhaul or change it.
Description
Technical Field
The utility model belongs to the technical field of locomotive braking equipment's technique and specifically relates to a four-column press of spring brake case is exclusively used in.
Background
Referring to fig. 5 and 6, the spring brake box is an important component of a locomotive brake system, and structurally comprises a box body 7 and a box cover 8, a spring 71 is vertically arranged in the box body 7, the length of the spring 71 in a free state is greater than the height of the box body 7, a clamping groove 72 is formed in the inner peripheral wall of the top of the box body 7, and a blocking edge 81 is formed on the outer peripheral wall of the bottom of the box cover 8. During installation, the box cover 8 is placed on the spring 71, the spring 71 is compressed, so that the rib 81 of the box cover 8 is lower than the clamping groove 72 of the box body 7, then the clamping spring 73 is arranged in the clamping groove 72 of the box body 7, and the rib 81 is limited from the upper side through the clamping spring 73, so that the spring 71 is prevented from ejecting the box cover 8 from the box body 7.
Referring to fig. 7, the existing installation method is to use pressure to install, the press machine includes a frame 1 and a hydraulic cylinder 2 fixedly installed on the frame 1, the frame 1 includes a bottom plate 11, guide rods fixedly connected to four corners of the bottom plate 11 and extending vertically upwards, and a top plate 12 supported at the tops of the four guide rods, a sliding plate 13 is arranged below the top plate 12, a piston rod 21 of the hydraulic cylinder 2 vertically penetrates the top plate 12 downwards and then is welded on the sliding plate 13, the piston rod is moved to drive the sliding plate 13 to slide up and down, a pressing assembly 4 is installed at the bottom end of the sliding plate 13, and a spring 71 is pressed into a box 7 through the pressing assembly 4.
However, the hydraulic cylinder 2 needs to be periodically overhauled and maintained in the using process, the piston rod 21 of the hydraulic cylinder 2 is fixedly welded with the sliding plate 13 of the rack 1, so that the hydraulic cylinder 2 is not convenient for an inspector to take down or replace from the rack 1, in addition, the effective welding area between the piston rod 21 and the sliding plate 13 is small, the pressure required by the spring 71 is large, and the open welding phenomenon is easy to occur between the piston rod 21 and the sliding plate 13 after long-time use, so that safety accidents are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a four column type presses of spring brake case is exclusively used in, its advantage is that can improve the stability of being connected between pneumatic cylinder and the slide, and makes things convenient for the staff to take off the pneumatic cylinder and overhauls or change it.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a four column press of spring brake case is exclusively used in, includes frame, pneumatic cylinder and pushes down the subassembly, its characterized in that: the frame comprises a bottom plate and a top plate, four corners of the top plate are fixedly supported on the bottom plate through guide columns, a sliding plate is arranged below the top plate, and a piston rod of the hydraulic cylinder is detachably and fixedly connected to the sliding plate through a connecting assembly after vertically penetrating through the top plate;
coupling assembling includes the go-between and the coupling nut who uses with the go-between cooperation, the step hole has been seted up in the go-between, the step hole includes pore and the gross porosity that top-down set up, coupling nut includes connecting portion and lower connecting portion, go up connecting portion and lower connecting portion formula structure as an organic whole, it upwards stretches out to go up connecting portion the pore in step hole and with the piston rod threaded connection of pneumatic cylinder, the step face in step hole is pressed and is held on the up end of lower connecting portion, is connected through fastening bolt between go-between and the slide.
Through adopting above-mentioned technical scheme, at first upwards wear out the go-between with coupling nut's last connecting portion, coupling nut's lower connecting portion support on the step face in the link ring internal step hole, then with the piston rod threaded connection of coupling nut and pneumatic cylinder, with bolted connection between go-between and the slide, the go-between can stabilize the pressure to coupling nut's lower connecting portion and hold, the piston rod and the slide detachable of pneumatic cylinder are fixed together, make things convenient for the staff to take off the pneumatic cylinder, carry out periodic maintenance or change to it, prevent to take place to become flexible between the piston rod of pneumatic cylinder and the slide, avoid appearing the incident as far as possible.
The utility model discloses further set up to: go up connecting portion and lower connecting portion and all be cylindricly, the pore and the coarse hole in step hole are the round hole.
The utility model discloses further set up to: the hole wall of the coarse hole of the stepped hole is provided with an internal thread, the peripheral wall of the lower connecting part of the connecting nut is provided with an external thread, and the lower connecting part of the connecting nut is in threaded connection with the coarse hole of the stepped hole.
By adopting the technical scheme, the connection stability between the connecting nut and the connecting ring is further improved.
The utility model discloses further set up to: the two sides of the upper connecting part are cut to form a tangent plane convenient for clamping a wrench.
Through adopting above-mentioned technical scheme, being provided with of tangent plane does benefit to spanner centre gripping coupling nut, conveniently carries out the dismouting to cylinder piston rod.
The utility model discloses further set up to: the lower edge of going up connecting portion and the lower edge of pore bottom all are provided with the fillet.
Through adopting above-mentioned technical scheme, at compression spring's in-process, the lower edge department of going up the lower limb of connecting portion and pore bottom produces stress concentration phenomenon easily, is provided with the fillet in this department, can reduce stress concentration, prevents that the two wearing and tearing each other from leading to appearing becoming flexible between go-between and the coupling nut.
The utility model discloses further set up to: four fastening bolts are arranged along the circumferential direction of the connecting ring.
Through adopting above-mentioned technical scheme, can be with stable the fixing on the slide of go-between through four fastening bolt that set up, also can stabilize the pressure to connect nut simultaneously and hold.
The utility model discloses further set up to: and a gap is reserved between a piston rod of the hydraulic cylinder and the sliding plate.
Through adopting above-mentioned technical scheme, prevent the piston rod and the slide direct contact of pneumatic cylinder, the piston rod tip of protection pneumatic cylinder does not receive the damage.
To sum up, the utility model discloses a beneficial technological effect does:
1. the connecting ring and the connecting nut which are sleeved with each other are arranged at the end part of the piston rod of the hydraulic cylinder, the connecting ring and the sliding plate are fixed through the bolt, the lower connecting part of the connecting nut can be pressed and fixed, the upper connecting part of the connecting nut penetrates out of the connecting ring and then is in threaded connection with the piston rod of the hydraulic cylinder, so that the piston rod of the hydraulic cylinder is indirectly fixed on the sliding plate, and on the premise of meeting usability requirements, a maintainer can conveniently take down the hydraulic cylinder regularly to overhaul and maintain the hydraulic cylinder, looseness between the piston rod and the sliding plate is prevented, and unsafe accidents in the compression process are avoided;
2. through the lower connecting part threaded connection of the connecting nut in the coarse hole of the connecting ring, the connecting strength between the connecting nut and the connecting ring is further improved, and meanwhile, the connecting stability between the piston rod and the sliding plate is also improved.
Drawings
Fig. 1 is a cross-sectional view of the overall structure of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic structural diagram of a connection ring in the present invention.
Fig. 4 is a schematic structural diagram of the connection nut of the present invention.
Fig. 5 is a schematic view of the overall structure of the spring brake case.
FIG. 6 is a cross-sectional view of the spring brake housing.
Fig. 7 is a schematic structural diagram of a press of the background art.
In the figure, 1, a frame; 11. a base plate; 12. a top plate; 13. a slide plate; 14. a guide post; 2. a hydraulic cylinder; 21. a piston rod; 3. a connecting assembly; 31. a connecting ring; 311. a stepped bore; 3111. fine pores; 3112. coarse holes are formed; 32. a connecting nut; 321. an upper connecting portion; 3211. cutting into noodles; 322. a lower connecting portion; 4. pressing the assembly; 41. an upper die connecting column; 42. an upper die end plate; 43. an upper die positioning block; 5. fastening a bolt; 6. spacing; 7. a box body; 71. a spring; 72. a card slot; 73. a clamp spring; 8. a box cover; 81. blocking edges; 9. and (4) rounding.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a four-column press of spring brake case is exclusively used in, including frame 1, frame 1 includes bottom plate 11 and roof 12 again, and the four corners department of roof 12 passes through guide bar fixed support on bottom plate 11. A sliding plate 13 is horizontally arranged below the top plate 12, and the sliding plate 13 is connected among the four guide rods in a sliding manner through a guide sleeve; the vertical pneumatic cylinder 2 that is provided with in top of roof 12, the piston rod 21 of pneumatic cylinder 2 vertically pierces through roof 12 downwards and through coupling assembling 3 detachable fixed connection on slide 13 to be used for driving slide 13 and slide from top to bottom along vertical direction, also make things convenient for the maintainer to regularly take off pneumatic cylinder 2 simultaneously, overhaul or change it.
Referring to fig. 1 and 2, the coupling assembly 3 includes a coupling ring 31 and a coupling nut 32, which are used in cooperation with each other. The connection ring 31 is cylindrical, a stepped hole 311 is formed in the connection ring, the stepped hole 311 includes a fine hole 3111 and a rough hole 3112 which are axially arranged, the fine hole 3111 and the rough hole 3112 are communicated with each other, and the fine hole 3111 is located above the rough hole 3112; the connecting nut 32 is in a step shape and comprises an upper connecting portion 321 and a lower connecting portion 322, an internal thread is formed in the upper connecting portion 321, an external thread is formed on the piston rod 21 of the hydraulic cylinder 2, during installation, the upper connecting portion 321 of the connecting nut 32 penetrates through the fine hole 3111 of the connecting ring 31 and is in threaded connection with the piston rod 21 of the hydraulic cylinder 2, the step surface of the step hole 311 in the connecting ring 31 can be pressed on the upper end face of the lower connecting portion 322 of the connecting nut 32, and finally the connecting ring 31 and the sliding plate 13 are fixed through the fastening bolt 5. Preferably, four fastening bolts 5 may be provided along the circumferential direction of the connection ring 31, and the connection ring 31 may be more stably fixed to the slide plate 13 by the four fastening bolts 5.
Referring to fig. 4, specifically, both the upper connecting portion 321 and the lower connecting portion 322 may be cylindrical or square column, both the fine hole 3111 and the rough hole 3112 of the stepped hole 311 may be circular holes or square holes, preferably, both the upper connecting portion 321 and the lower connecting portion 322 are cylindrical, both the fine hole 3111 and the rough hole 3112 of the stepped hole 311 are circular holes, an internal thread is formed on a hole wall of the rough hole 3112 of the stepped hole 311, an external thread is formed on a peripheral wall of the lower connecting portion 322, the lower connecting portion 322 of the connecting nut 32 is in threaded connection with the rough hole 3112 of the stepped hole 311, and the connection strength between the connecting nut 32 and the connecting ring 31 is further improved.
Referring to fig. 3 and 4, in consideration of the fact that the hydraulic cylinder 2 is required to provide a large pressure in the process of compressing the spring, the connection ring 31 is sleeved on the connection nut 32, and in the process of compressing the spring, a certain twisting motion inevitably occurs between the connection ring 31 and the connection nut 32, and since the lower edge of the upper connection portion 321 of the connection nut 32 is in direct contact with the lower edge of the bottom end of the fine hole 3111 of the connection ring 31, a stress concentration phenomenon is easily generated at the position, and therefore, the rounded corners 9 are respectively arranged on the lower edge of the upper connection portion 321 of the connection nut 32 and the lower edge of the bottom end of the fine hole 3111 of the connection ring 31, so that unstable connection between the two is prevented due to abrasion, and the durability of the press.
Referring to fig. 1, a gap 6 is left between the piston rod 21 of the hydraulic cylinder 2 and the sliding plate 13 to prevent the piston rod 21 from directly contacting the sliding plate 13 and protect the end of the piston rod 21 of the hydraulic cylinder 2 from being damaged.
Referring to fig. 4, in order to facilitate maintenance or replacement of the hydraulic cylinder 2, a vertical cut surface 3211 is formed at a cut-out structure at both sides of the upper connection portion 321 of the connection nut 32 to facilitate a maintenance worker to grip the upper connection portion 321 with a wrench, thereby screwing the piston rod 21 of the hydraulic cylinder 2 out of the upper connection portion 321.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a four column press of spring brake case is exclusively used in, includes frame (1), pneumatic cylinder (2) and pushes down subassembly (4), its characterized in that: the machine frame (1) comprises a bottom plate (11) and a top plate (12), four corners of the top plate (12) are fixedly supported on the bottom plate (11) through guide columns (14), a sliding plate (13) is arranged below the top plate (12), and a piston rod (21) of the hydraulic cylinder (2) vertically penetrates through the top plate (12) downwards and then is detachably and fixedly connected onto the sliding plate (13) through a connecting assembly (3);
coupling assembling (3) include go-between (31) and connect nut (32) with go-between (31) cooperation use, step hole (311) have been seted up in go-between (31), step hole (311) include pore (3111) and coarse pore (3112) that top-down set up, connect nut (32) include connecting portion (321) and lower connecting portion (322), go up connecting portion (321) and lower connecting portion (322) formula structure as an organic whole, go up connecting portion (321) and upwards stretch out pore (3111) of step hole (311) and with piston rod (21) threaded connection of pneumatic cylinder (2), the step face pressure of step hole (311) is held down on the up end of connecting portion (322), be connected through fastening bolt (5) between go-between (31) and slide (13).
2. The four-column press special for the spring brake box according to claim 1, is characterized in that: go up connecting portion (321) and lower connecting portion (322) all are cylindricly, pore (3111) and coarse opening (3112) of step hole (311) are the round hole.
3. The four-column press special for the spring brake box according to claim 2, is characterized in that: an internal thread is arranged on the hole wall of the rough hole (3112) of the stepped hole (311), an external thread is arranged on the peripheral wall of the lower connecting part (322) of the connecting nut (32), and the lower connecting part (322) of the connecting nut (32) is in threaded connection with the inside of the rough hole (3112) of the stepped hole (311).
4. The four-column press special for the spring brake box according to claim 1, is characterized in that: the two sides of the upper connecting part (321) are cut to form a cut surface (3211) convenient for clamping by a wrench.
5. The four-column press special for the spring brake box according to claim 1, is characterized in that: the lower edge of the upper connecting part (321) and the lower edge of the bottom end of the pore (3111) are both provided with a fillet (9).
6. The four-column press special for the spring brake box according to claim 1, is characterized in that: the number of the fastening bolts (5) is four along the circumferential direction of the connecting ring (31).
7. The four-column press special for the spring brake box according to claim 1, is characterized in that: a gap (6) is reserved between a piston rod (21) of the hydraulic cylinder (2) and the sliding plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922071406.XU CN210997395U (en) | 2019-11-25 | 2019-11-25 | Four-column press machine special for spring brake box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922071406.XU CN210997395U (en) | 2019-11-25 | 2019-11-25 | Four-column press machine special for spring brake box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210997395U true CN210997395U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922071406.XU Active CN210997395U (en) | 2019-11-25 | 2019-11-25 | Four-column press machine special for spring brake box |
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| Country | Link |
|---|---|
| CN (1) | CN210997395U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113635037A (en) * | 2021-08-20 | 2021-11-12 | 瑞立集团瑞安汽车零部件有限公司 | Automatic screwing equipment for elastic washer and nut of brake chamber |
-
2019
- 2019-11-25 CN CN201922071406.XU patent/CN210997395U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113635037A (en) * | 2021-08-20 | 2021-11-12 | 瑞立集团瑞安汽车零部件有限公司 | Automatic screwing equipment for elastic washer and nut of brake chamber |
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