A spring bracket with stable structure and easy load adjustment

Abstract

The present invention discloses a spring support with stable structure and easy load adjustment, comprising a load column assembly, a pressure plate assembly, a cover cylinder and a load detection and adjustment assembly; the load detection and adjustment assembly comprises a support, a first locking pin, a second locking pin, a first hydraulic device, a second hydraulic device and a hydraulic pump; the cover cylinder comprises a cylinder, a lower bottom plate is arranged at the bottom opening of the cylinder, an upper top plate is arranged at the top opening of the cylinder, a pressure plate assembly is arranged in the cylinder, a spring is located between the lower bottom plate and the pressure plate assembly, the lower end of the load column assembly passes through the upper top plate and the pressure plate assembly, and the load column assembly and the pressure plate assembly are threadedly connected. The system can overcome the defect that the load column of the traditional spring support is easy to tilt, and can accurately detect and adjust the load on site, and the operation is simple, efficient, labor-saving, safe and reliable.

Description

Technical Field

[0001] The invention relates to a spring bracket, in particular to a spring bracket with a stable structure and convenient load adjustment. Background Art

[0002] Spring brackets are important load-bearing equipment for energy industry equipment (such as pipeline systems, header systems, and turbine systems). Their load directly affects the service life and safe operation of the equipment. Since spring brackets have a simple structure and do not require a large space for installation and a suspension structure, spring brackets have been widely used. In particular, when there is no load-bearing structure above equipment such as pipelines, spring brackets are usually installed on the load-bearing beams, ground, and floor slabs below the equipment. When the spring bracket is overloaded or underloaded, the load column is usually adjusted mechanically to achieve the purpose of roughly adjusting the load. Its disadvantages are as follows: (1) When the equipment supported on the spring bracket undergoes horizontal thermal displacement, the load column of the spring bracket is very easy to be skewed, stuck, or even deformed under the action of friction or lateral force between the equipment and the top support of the spring bracket. Even if it is corrected under one working condition, it will still be skewed after the working condition changes. (2) Due to its own structural reasons and small space, its load adjustment is extremely difficult. Sometimes several workers take several days to debug a set of spring brackets, which is extremely inefficient. Especially for large-load spring brackets, it is almost impossible to adjust them using traditional methods. (3) Due to the limited space and the particularity of the structure, it is impossible to carry out load testing on site. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and to provide a spring bracket with a stable structure and easy load adjustment. The system can overcome the defect that the load column of the traditional spring bracket is easy to tilt, and the load can be accurately detected and adjusted on site. The operation is simple, efficient, labor-saving, safe and reliable.

[0004] To achieve the above-mentioned purpose, the spring bracket with stable structure and easy load adjustment of the present invention comprises a load column assembly, a pressure plate assembly, a cover tube and a load detection and adjustment assembly; the load detection and adjustment assembly comprises a support, a first locking pin, a second locking pin, a first hydraulic device, a second hydraulic device and a hydraulic pump;

[0005] The cover cylinder comprises a cylinder, a lower bottom plate is arranged at the bottom opening of the cylinder, an upper top plate is arranged at the top opening of the cylinder, a pressure plate assembly is arranged in the cylinder, and a spring is located between the lower bottom plate and the pressure plate assembly;

[0006] The lower end of the load column assembly passes through the upper top plate and the pressure plate assembly, and the load column assembly and the pressure plate assembly are threadedly connected;

[0007] The lower end surface of the support is connected to the upper end of the load column assembly, the first locking pin passes through the first locking hole on the side of the cylinder and is inserted into the first pin hole on the outer peripheral surface of the pressure plate assembly, and the second locking pin passes through the second locking hole on the side of the cover cylinder and is inserted into the second pin hole on the outer peripheral surface of the pressure plate assembly;

[0008] A displacement indicator is provided on the pressure plate assembly. The pointer of the displacement indicator extends from the rectangular window on the side of the cylinder to the outside of the cover cylinder and cooperates with the displacement scale plate on the cover cylinder. The lower end of the first hydraulic device passes through the upper top plate and is fixed to the pressure plate assembly. The lower end of the second hydraulic device passes through the upper top plate and is fixed to the pressure plate assembly. The upper end faces of the first hydraulic device and the second hydraulic device are respectively supported on supports. The hydraulic pump is connected to the first hydraulic device, and the hydraulic pump is connected to the second hydraulic device.

[0009] The lower end surface of the support is connected to the upper end of the load column assembly through a shaft sleeve.

[0010] The lower end of the first hydraulic device passes through the upper top plate and is fixed in the first base on the pressure plate assembly, and the lower end of the second hydraulic device passes through the upper top plate and is fixed in the second base on the pressure plate assembly.

[0011] The upper top plate is provided with a first circular hole for the load column assembly to pass through, and the pressure plate assembly is provided with a second circular hole for the load column assembly to pass through.

[0012] A third circular hole for the first hydraulic device to pass through is arranged on the upper top plate; and a fourth circular hole for the second hydraulic device to pass through is arranged on the upper top plate.

[0013] The load column assembly includes a linear bearing and a sleeve with an external thread at the bottom, wherein the sleeve is provided with a fifth circular hole, a sixth circular hole, a seventh circular hole and an eighth circular hole, the linear bearing is sleeved in the first circular hole, the upper end of the sleeve is fixed on the support, the lower end of the sleeve passes through the linear bearing and the second circular hole, the upper end of the sleeve is sleeved in the shaft sleeve, and the load column assembly is rotated through the fifth circular hole, the sixth circular hole, the seventh circular hole and the eighth circular hole to adjust the load of the spring bracket. When the spring is displaced in the vertical direction, the linear bearing contacts with the first circular hole and slides freely along the axial direction. Under this constraint, the load column assembly is always vertical.

[0014] The pressure plate assembly includes a disc, a first ball bearing, a second ball bearing, a third ball bearing, a first base, a second base and a displacement indicator, wherein the first ball bearing, the second ball bearing and the third ball bearing are respectively fixed on the outer circumferential surface of the disc, and the balls roll up and down on the inner surface of the cylinder. Under this constraint, the disc is always concentric with the cylinder, the first base and the second base are symmetrically fixed on the upper surface of the disc, the first pin hole and the second pin hole are radially symmetrically arranged on the cylindrical surface of the disc, and the displacement indicator is fixed on the cylindrical surface of the disc.

[0015] The hydraulic pump is connected to the first hydraulic device through a first conduit.

[0016] The hydraulic pump is connected to the second hydraulic device through a second conduit.

[0017] The present invention has the following beneficial effects:

[0018] When the spring bracket with stable structure and easy load adjustment described in the present invention is working, the first ball bearing, the second ball bearing and the third ball bearing are constrained by the wall of the cover barrel, and the lower part of the pressure plate assembly and the load column assembly is always concentric with the cover barrel. The load column assembly is always concentric with the cover barrel under the constraint of the first circular hole. When the upper and lower radial parts are constrained, when the supported object above undergoes horizontal displacement, the load column will no longer be skewed, thereby overcoming the defect that the load column of the traditional spring bracket is easy to be skewed. During load detection and adjustment, the first hydraulic device and the second hydraulic device are used to carry and rotate the load column to load and unload through the hydraulic pump. The sum of the loads of the first hydraulic device and the second hydraulic device is the measured load of the spring bracket. After the measured load is adjusted to the specified load, the load column is rotated to carry it, and the first hydraulic device and the second hydraulic device are unloaded at the same time. During the load detection and adjustment process, the supported object above the spring bracket is never unloaded, thereby achieving the purpose of accurate load detection and adjustment on site, and the operation is simple, efficient, labor-saving, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 is a schematic diagram of a load column assembly 1 in the present invention;

[0021] Figure 3 It is a schematic diagram of the pressure plate assembly 2 of the present invention;

[0022] Figure 4 It is a schematic diagram of the cover tube 3 in the present invention;

[0023] Figure 5 It is a schematic diagram of the load detection and adjustment component 4 in the present invention.

[0024] Among them, 1 is a load column assembly, 2 is a pressure plate assembly, 3 is a cover cylinder, 4 is a load detection and adjustment assembly, 5 is a spring, 6 is a support, 7 is a sleeve, 8 is a sleeve, 9 is a fifth circular hole, 10 is a sixth circular hole, 11 is a seventh circular hole, 12 is an eighth circular hole, 13 is a linear bearing, 14 is a disc, 15 is a second circular hole, 16 is a first ball bearing, 17 is a second ball bearing, 18 is a third ball bearing, 19 is a first base, 20 is a second base, 21 is a first Pin hole, 22 is the second pin hole, 23 is the upper top plate, 24 is the cylinder, 25 is the lower bottom plate, 26 is the first circular hole, 27 is the third circular hole, 28 is the fourth circular hole, 29 is the first locking pin, 30 is the first locking hole, 31 is the second locking pin, 32 is the second locking hole, 33 is the rectangular window, 34 is the displacement scale, 35 is the displacement indicator, 36 is the first hydraulic device, 37 is the second hydraulic device, 38 is the hydraulic pump, 39 is the first conduit, and 40 is the second conduit. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0026] refer to Figures 1 to 5 The spring bracket with stable structure and easy load adjustment includes a load column assembly 1, a pressure plate assembly 2, a cover cylinder 3 and a load detection and adjustment assembly 4; the load detection and adjustment assembly 4 includes a support 6, a first locking pin 29, a second locking pin 31, a first hydraulic device 36, a second hydraulic device 37 and a hydraulic pump 38; the cover cylinder 3 includes a cylinder 24, a lower bottom plate 25 is arranged at the bottom opening of the cylinder 24, an upper top plate 23 is arranged at the top opening of the cylinder 24, a pressure plate assembly 2 is arranged in the cylinder 24, a spring 5 is located between the lower bottom plate 25 and the pressure plate assembly 2, the lower end of the load column assembly 1 passes through the upper top plate 23 and the pressure plate assembly 2, the load column assembly 1 and the pressure plate assembly 2 are threadedly connected, the lower end surface of the support 6 is connected to the upper end of the load column assembly 1, the first locking pin 29 passes through the side of the cylinder 24 The first locking hole 30 is inserted into the first pin hole 21 on the outer circumferential surface of the pressure plate assembly 2, and the second locking pin 31 is inserted into the second pin hole 22 on the outer circumferential surface of the pressure plate assembly 2 through the second locking hole 32 on the side of the cover cylinder 3; a displacement indicator 35 is provided on the pressure plate assembly 2, and the pointer of the displacement indicator 35 extends from the rectangular window 33 on the side of the cylinder 24 to the outside of the cover cylinder 3 and cooperates with the displacement scale plate 34 on the cover cylinder 3. The lower end of the first hydraulic device 36 passes through the upper top plate 23 and is fixed to the pressure plate assembly 2, and the lower end of the second hydraulic device 37 passes through the upper top plate 23 and is fixed to the pressure plate assembly 2. The upper end faces of the first hydraulic device 36 and the upper end faces of the second hydraulic device 37 are respectively supported on the support 6, and the hydraulic pump 38 is connected to the first hydraulic device 36, and the hydraulic pump 38 is connected to the second hydraulic device 37.

[0027] The lower end surface of the support 6 is connected to the upper end of the load column assembly 1 through the shaft sleeve 7; the lower end of the first hydraulic device 36 passes through the upper top plate 23 and is fixed in the first base 19 on the pressure plate assembly 2, and the lower end of the second hydraulic device 37 passes through the upper top plate 23 and is fixed in the second base 20 on the pressure plate assembly 2; the upper top plate 23 is provided with a first circular hole 26 for the load column assembly 1 to pass through, and the pressure plate assembly 2 is provided with a second circular hole 15 for the load column assembly 1 to pass through; the upper top plate 23 is provided with a third circular hole 27 for the first hydraulic device 36 to pass through; the upper top plate 23 is provided with a fourth circular hole 28 for the second hydraulic device 37 to pass through.

[0028] The load column assembly 1 includes a linear bearing 13 and a sleeve 8 with an external thread at the bottom, wherein the sleeve 8 is provided with a fifth circular hole 9, a sixth circular hole 10, a seventh circular hole 11 and an eighth circular hole 12, the linear bearing 13 is sleeved in the first circular hole 26, the upper end of the sleeve 8 is fixed on the support 6, the lower end of the sleeve 8 passes through the linear bearing 13 and the second circular hole 15, the upper end of the sleeve 8 is sleeved in the shaft sleeve 7, and the load column assembly 1 is rotated through the fifth circular hole 9, the sixth circular hole 10, the seventh circular hole 11 and the eighth circular hole 12 to adjust the load of the spring bracket. When the spring 5 is displaced in the vertical direction, the linear bearing 13 contacts the first circular hole 26 and slides freely along the axial direction. Under this constraint, the load column assembly 1 is always vertical.

[0029] The pressure plate assembly 2 includes a disc 14, a first ball bearing 16, a second ball bearing 17, a third ball bearing 18, a first base 19, a second base 20 and a displacement indicator 35, wherein the first ball bearing 16, the second ball bearing 17 and the third ball bearing 18 are respectively fixed on the outer circumferential surface of the disc 14, and the balls roll up and down on the inner surface of the cylinder 24. Under this constraint, the disc 14 is always concentric with the cylinder 24, the first base 19 and the second base 20 are symmetrically fixed on the upper surface of the disc 14, the first pin hole 21 and the second pin hole 22 are radially symmetrically arranged on the cylindrical surface of the disc 14, and the displacement indicator 35 is fixed on the cylindrical surface of the disc 14.

[0030] The hydraulic pump 38 is connected to the first hydraulic device 36 via a first conduit 39 ; the hydraulic pump 38 is connected to the second hydraulic device 37 via a second conduit 40 .

[0031] The specific operation process of the present invention is:

[0032] The first ball bearing 16, the second ball bearing 17, and the third ball bearing 18 are constrained by the wall of the cover tube 3, and the lower part of the pressure plate assembly 2 and the load column assembly 1 are always concentric with the cover tube 3. The linear bearing 13 is constrained by the first circular hole 26, and the upper part of the linear bearing 13 and the load column assembly 1 are always concentric with the cover tube 3. When the upper and lower parts are constrained radially, the load column assembly 1 is always in a vertical state and has a stable structure. During load detection and value adjustment, the first hydraulic device 36 and the second hydraulic device 37 are loaded and rotated by the hydraulic pump 38 to load and unload the load column assembly 1. The sum of the loads of the first hydraulic device 36 and the second hydraulic device 37 is the measured load of the spring bracket. After adjusting the measured load to the specified load, the load column assembly 1 is rotated to load it, and the first hydraulic device 36 and the second hydraulic device 37 are unloaded at the same time. During the load detection and adjustment process, the supported object above the spring bracket is never unloaded.

[0033] The invention has a stable structure, can accurately detect and adjust the load on site, is simple to operate, efficient, labor-saving, safe and reliable, overcomes the defect that the load column of the traditional spring 5 bracket is easy to tilt, and effectively solves the problems of difficult on-site load debugging, low efficiency, inability to mobilize and accurate load detection.

Claims

1. A spring bracket with stable structure and easy load adjustment, characterized in that: The invention comprises a load column assembly (1), a pressure plate assembly (2), a cover tube (3) and a load detection and adjustment assembly (4); the load detection and adjustment assembly (4) comprises a support (6), a first locking pin (29), a second locking pin (31), a first hydraulic device (36), a second hydraulic device (37) and a hydraulic pump (38); The cover cylinder (3) comprises a cylinder (24), a lower bottom plate (25) is arranged at the bottom opening of the cylinder (24), an upper top plate (23) is arranged at the top opening of the cylinder (24), a pressure plate assembly (2) is arranged in the cylinder (24), and a spring (5) is located between the lower bottom plate (25) and the pressure plate assembly (2); The lower end of the load column assembly (1) passes through the upper top plate (23) and the pressure plate assembly (2), and the load column assembly (1) and the pressure plate assembly (2) are threadedly connected; The lower end surface of the support (6) is connected to the upper end of the load column assembly (1), the first locking pin (29) passes through the first locking hole (30) on the side of the cylinder (24) and is inserted into the first pin hole (21) on the outer peripheral surface of the pressure plate assembly (2), and the second locking pin (31) passes through the second locking hole (32) on the side of the cover cylinder (3) and is inserted into the second pin hole (22) on the outer peripheral surface of the pressure plate assembly (2); The pressure plate assembly (2) is provided with a displacement indicator (35), the pointer of the displacement indicator (35) extends from a rectangular window (33) on the side of the cylinder (24) to the outside of the cover cylinder (3) and then matches with the displacement scale plate (34) on the cover cylinder (3), the lower end of the first hydraulic device (36) passes through the upper top plate (23) and is fixed to the pressure plate assembly (2), the lower end of the second hydraulic device (37) passes through the upper top plate (23) and is fixed to the pressure plate assembly (2), the upper end surface of the first hydraulic device (36) and the upper end surface of the second hydraulic device (37) are respectively supported on the support (6), the hydraulic pump (38) is connected to the first hydraulic device (36), and the hydraulic pump (38) is connected to the second hydraulic device (37); The upper top plate (23) is provided with a first circular hole (26) for the load column assembly (1) to pass through, and the pressure plate assembly (2) is provided with a second circular hole (15) for the load column assembly (1) to pass through; The upper top plate (23) is provided with a third circular hole (27) for the first hydraulic device (36) to pass through; the upper top plate (23) is provided with a fourth circular hole (28) for the second hydraulic device (37) to pass through; The load column assembly (1) comprises a linear bearing (13) and a sleeve (8) with an external thread at the bottom, wherein the sleeve (8) is provided with a fifth circular hole (9), a sixth circular hole (10), a seventh circular hole (11) and an eighth circular hole (12), the linear bearing (13) is sleeved in the first circular hole (26), the upper end of the sleeve (8) is fixed on the support (6), the lower end of the sleeve (8) passes through the linear bearing (13) and the second circular hole (15), the upper end of the sleeve (8) is sleeved in the shaft sleeve (7), the load column assembly (1) is rotated through the fifth circular hole (9), the sixth circular hole (10), the seventh circular hole (11) and the eighth circular hole (12) to adjust the load of the spring bracket, and when the spring (5) is displaced in the vertical direction, the linear bearing (13) contacts the first circular hole (26) and slides freely along the axial direction; The pressure plate assembly (2) comprises a disc (14), a first ball bearing (16), a second ball bearing (17), a third ball bearing (18), a first base (19), a second base (20) and a displacement indicator (35), wherein the first ball bearing (16), the second ball bearing (17) and the third ball bearing (18) are respectively fixed on the outer peripheral surface of the disc (14), the balls roll up and down on the inner surface of the cylinder (24), the first base (19) and the second base (20) are symmetrically fixed on the upper surface of the disc (14), the first pin hole (21) and the second pin hole (22) are radially symmetrically arranged on the cylindrical surface of the disc (14), and the displacement indicator (35) is fixed on the cylindrical surface of the disc (14).

2. The spring bracket with stable structure and easy load adjustment according to claim 1, characterized in that: The lower end surface of the support (6) is connected to the upper end of the load column assembly (1) through a shaft sleeve (7).

3. The spring bracket with stable structure and easy load adjustment according to claim 1, characterized in that: The lower end of the first hydraulic device (36) passes through the upper top plate (23) and is fixed in the first base (19) on the pressure plate assembly (2), and the lower end of the second hydraulic device (37) passes through the upper top plate (23) and is fixed in the second base (20) on the pressure plate assembly (2).

4. The spring bracket with stable structure and easy load adjustment according to claim 1, characterized in that: The hydraulic pump (38) is connected to the first hydraulic device (36) via a first conduit (39).

5. The spring bracket with stable structure and easy load adjustment according to claim 1, characterized in that: The hydraulic pump (38) is connected to the second hydraulic device (37) via a second conduit (40).

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